AU2007100919B4 - Gaming system and method - Google Patents

Description

21/09/2007 14:17 LEGAL COMPLIANCE CO.SECRETARY 4 0262837999 NO.930 9007 0.

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AUSTRALIA

Patents Act 1990 COMPLETE SPECIFICATION INNOVATION PATENT Applicant: Aristocrat Technologies Australia Pty Limited Invention Title: Gaming system and method The following statement is a full description of this invention, including the best method for performing it known to me/us: COMS ID No: ARCS-161952 Received by IP Australia: Time 14:36 Date 2007-09-21 21/09/2007 14:17 LEGAL COMPLIANCE CO.SECRETARY 0262837999 N0.930 9008 0 0 ci

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Co ci Title S2 GAMING SYSTEM AND METHOD Field of the Invention The present invention relates to a gaming system, a gaming method and a game controller.

Background to the Invention Australian patent 603193 discloses a poker machine having a means to cause each reel to turn to a stop in a position where a single line of symbols (one for each reel) is exhibited behind a viewing window. The poker machine has means for determining the length of time for which each reel is spun. If the same symbol is exhibited by a plurality of first stopped reels, normal operation of the machine is suspended and the time for which the next reel is spun is extended. Accordingly, in Australian patent 603193, spinning of a reel is extended in very limited circumstances.

Summary of the Invention The invention provides a method of displaying an outcome of a game to a player comprising: -obtaining a stop position for each of a plurality of reels, each reel having a plurality of symbols at least one reel having a special symbol, each stop position specifying which symbol or symbols of each reel will correspond to a win line; displaying spinning of each reel to the reel's stop position; and determining whether a special symbol condition is met; and making the display of the spinning of at least one subsequent reel different to display of at least the L:\specificatStH\PO 401 7 3-4OC 21/a09/o COMS ID No: ARCS-161952 Received by IP Australia: Time 14:36 Date 2007-09-21 21/09/2007 14:17 LEGAL COMPLIANCE CO.SECRETARY 0262837999 N0.930 D009 3 first reel if the.:special symbol condition is. met.

In an embodiment, determining whether a special symbol condition is met comprises determining whether a special symbol will appear on a win line played by the player for a first reel.

SIn an embodiment, determining whether a special symbol o condition is met comprises determining whether a special symbol in combination with one or more symbols correspond o to an initial portion of a predetermined game outcome and 0 will appear on a win line played by the player after a predetermined number of reels have spun to a.stop.

In an embodiment, making the display different comprises altering at least one of the speed of spinning, the duration of spinning .and the direction of spinning.

The invention also provides a gaming. system comprising: a stop determiner configured to determine a stop position of each of a plurality of reels, each reel having a pluralityof symbols, each stop position specifying which symbol or symbols of the reel will correspond to a win line; a display for displaying spinning of each reel to the reel's stop position .with at least a first reel being spun normally to the fi'rst reel's stop position; and a suspense mode controller configured to determine whether a special symbol condition is met and make the display of the spinning of at least one subsequent reel different to display of at least the first reel if the special symbol condition is met.

In an embodiment, determining whether a special symbol condition is met comprises determining whether a special symbol will appear on a win line played by the player for a first reel.

.i\Seoifaicatlon\200473.daoC 21/DS/t7 COMS ID No: ARCS-161952 Received by IP Australia: Time 14:36 Date 2007-09-21 21/09/2007 14:17 LEGAL COMPLIANCE CO.SECRETARY 4 0262837999 N0.930 D010 4 0 *L In an embodiment, determining whether a special symbol j condition is met comprises determining whether a special symbol in combination with one or moke symbols correspond to an initial portion of a predetermined game outcome and will appear on a win line played by the player after a predetermined number of reels have spun to a stop.

SIn an embodiment, making the display different by altering at least one of the speed of spinning, the duration of Sspinning and the direction of spinning.

ci The invention also provides a game .controller for a gaming system, the game controller configured to: determine whether a special symbol condition is met based on a stop position for each of a plurality of reels, each reel having a plurality of symbols at least one reel having a special symbol, each stop position specifying which symbol or symbols of each reel will correspond to a win line; and make the display of the spinning of at least one subsequent reel different to display of at least the first reel if the special symbol condition is met.

In an embodiment, determining whether a special symbol condition is met comprises determining whether a special .symbol will appear on a win line played by the player for a first reel.

In an embodiment, .determining whether a special symbol condition is met comprises determining whether a special symbol in combination with one or more symbols correspond to an initial portion of a predetermined game outcome and will appear on a win line played by the player after a predetermined number of reels have spun to a stop.

In an embodiment, making the display different by altering L: \2 clfictions\P00473.doc 21/09/07 COMS ID No: ARCS-161952 Received by IP Australia: Time 14:36 Date 2007-09-21 21/09/2007 14:17 LEGAL COMPLIANCE CO.SECRETARY 0262837999 NO.930 D011 0 0 Ci at least one of the speed of spinning, the duration of Q spinning and the direction of spinning.

Brief Description of the Drawings CM Figure 1 is a perspective view of a stand alone Sgaming machine; Figure 2 is a block diagram of the functional Scomponents of a gaming machine; Figure 3 is a schematic diagram of the functional o components of a memory; Figure 4 is a schematic diagram of a network gaming system; Figure 5 is an exemplary display during a game in accordance with the example; Figure 6 is a block diagram of the gaming system according to the preferred embodiment; and Figure 7 is a flowchart showing the method of the preferred embodiment.

Preferred Embodiment Referring to the drawings, there is shown a gaming system arranged to implement a game having a suspense mode where display of at least one reel is made different to at least one other reel in response to occurrence of a special symbol condition in respect-of one or more win lines played by the player. This can include a special symbol appearing on a first reel.

The gaming system can take a number of different forms.

In a first form, a stand alone gaming machine is provided wherein all or most components required for implementing the game are present in a player operable gaming machine.

In a second form, a distributed architecture is provided L: \Secifi=ction$s\EQ73.de= 21/09/07 COMS ID No: ARCS-161952 Received by IP Australia: Time 14:36 Date 2007-09-21 21/09/2007 14:17 LEGAL COMPLIANCE CO.SECRETARY 4 0262837999 N0.930 D012 6- 0 C' wherein some of the components required for implementing Q the game are present in a player operable gaming machine V/ and some of the components required for implementing the game are located remotely relative to the gaming machine.

For example, a "thick client" architecture may be used wherein part of the game is executed on a player operable gaming machine and part of the game is executed remotely, Ssuch as by a gaming server; or a "thin client" Sarchitecture may be used wherein most of the game is executed remotely such as by a gaming server and a player Soperable gaming machine is used only to display audible o and/or visible gaming information to the player and receive gaming inputs from the player.

However, it will be understood that other arrangements are envisaged. For example, an architecture may be provided wherein a gaming machine is networked to a gaming server and the respective functions of the gaming machine and the gaming server are selectively modifiable. For example, the gaming system may operate in stand alone gaming machine mode, "thick client" mode or "thin client" mode ,depending on the game being played, operating conditions, and so on. Other variations will be apparent to persons skilled in the art.

A gaming system in the form of a stand alone gaming machine 10 is illustrated in Figure 1. The gaming machine includes a console 12 having a display 14 on which is displayed representations of a game 16 that can be played by a player. A mid-trim 20 of the gaming machine houses a bank of buttons 22 for enabling a player to interact with the gaming machine, in particular during gameplay. The mid-trim 20 also houses a credit input mechanism 24 which in this example includes a coin input chute 24A and a bill collector 24B. Other credit input mechanisms may also be employed, for example, a card reader for reading a smart card, debit card or credit L i\Eprcificaotlons\P00473.dtc 21/09/Ct COMS ID No: ARCS-161952 Received by IP Australia: Time 14:36 Date 2007-09-21 21/09/2007 14:17 LEGAL COMPLIANCE CO.SECRETARY 0262837999 N0.930 D013 S- 7 0 0 ci card. A reading device may also be provided for the 0 purpose of reading a player tracking device, for example as part of a loyalty program. The player tracking device may be in the form of a card, flash drive or any other portable storage medium capable of being read by the reading device.

Ch A top box 26 may carry artwork 28, including for example o pay tables and details of bonus awards and other information or images relating to the game. Further o artwork and/or information may be provided on a front O panel 29 of the console 12. A coin tray 30 is mounted beneath the front panel 29 for dispensing cash payouts from the gaming machine The display 14 shown in Figure 1 is in the form of a video display unit, particularly a cathode ray tube screen device. Alternatively, the display 14 may be a liquid crystal display, plasma screen, any other suitable video display unit, or the visible portion of an electromechanical device. The top box 26 may also include a display, for example a video display unit, which may be of the same type as the display 14, or of a different type.

Figure 2 shows a block diagram of operative components of a typical gaming machine which may be the same as or different to the gaming machine of Figure 1.

The gaming machine 100 includes a game controller 101 having a processor 102. Instructions and data to control operation of the processor 102 are stored in a memory 103, which is in data communication with the processor 102.

Typically, the gaming machine 100 will include both volatile and non-volatile memory and more than one of each type of memory, with such memories being collectively represented by the memory 103.

L: \a8cC11ciions\POo473.d-c 21/s0/07 COMS ID No: ARCS-161952 Received by IP Australia: Time 14:36 Date 2007-09-21 21/09/2007 14:17 LEGAL COMPLIANCE CO.SECRETARY 0262837999 NO.930 3014 -8- 0 SThe gaming machine has hardware meters 104 for purposes /including ensuring regulatory compliance and monitoring player credit, an input/output interface 105 for communicating with peripheral devices of the gaming machine 100. The input/output interface 105 and/or the Speripheral devices may be intelligent devices with their C own memory for storing associated instructions and data o for use with the input/output interface or the peripheral devices. A random number generator module 113 generates o random numbers for use by the processor 102.

In the example shown in Figure 2, a player interface 120 includes peripheral devices that communicate with the game controller 101 comprise one or more displays 106, a touch screen 107, a card and/or ticket reader 108, a printer 109, a bill acceptor and/or coin input mechanism 110 and a coin output mechanism 111. Additional hardware may be included as part of the gaming machine 100, or hardware may be omitted as required for the specific implementation.

In addition, the gaming machine 100 may include a communications interface, for example a network card 112.

The network card may, for example, send status information, accounting information or other information to a central controller, server or database and receive data or commands from the central controller, server or database.

Figure 3 shows a block diagram of the main components of an exemplary memory 103. The memory 103 includes RAM 103A, EPROM 103B and a mass storage device 103C. The RAM 103A typically temporarily holds program files for execution by the processor 102 and related data. The EPROM 103B may be a boot ROM device and/or may contain some system or game related code. The mass storage device L: \Se:irisa: 056\?Q0 473,doc 21109/0 COMS ID No: ARCS-161952 Received by IP Australia: Time 14:36 Date 2007-09-21 21/09/2007 14:17 LEGAL COMPLIANCE CO.SECRETARY 4 0262937999 N0.930 9015 9- C- 103C is typically used to store game programs, thei integrity of which may be verified and/or authenticated by the processor 102 using protected code from the EPROM 103B or elsewhere.

It is also possible for the operative components of the Sgaming machine 100 to be distributed, for example 0 input/output devices 106,107,108,109,110,111 to be Sprovided remotely from the game controller 101.

SFigure 4 shows a gaming system 200 in accordance with an o alternative embodiment. The gaming system 200 includes a network 201, which for example may be an Ethernet network.

Gaming.machines 202,.shown arranged in three banks 203 of two gaming machines 202 in Figure 5, are connected to the network 201. The gaming machines 202 provide a player operable interface and may be the same as the gaming machines 10,100 shown in Figures 1 and 2, or may have simplified functionality depending on.the requirements for implementing game play. While banks 203 of two gaming machines are illustrated in Figure 4, banks of one, three or more gaming machines are also envisaged.

One or more displays 204 may also be connected to the network 201. The displays 204 may, for example, be associated with one or more banks 203 of gaming machines.

The display' 204 may be used to display representations associated with game play on the gaming machines 202, and/or used to display other representations, for example promotional or informational material.

In a thick client embodiment, game server 205 implements part of the game played by a player using a gaming machine 202 and the gaming machine 202 implements part of the game. With this embodiment, as both the game server and the gaming device implement part of the game, they collectively provide a game controller- A database L\:SPecAZlI,"eion\PO A .doc 21/09/ 0 COMS ID No: ARCS-161952 Received by IP Australia: Time 14:36 Date 2007-09-21 21/09/2007 14:17 LEGAL COMPLIANCE CO.SECRETARY 0262837999 N0.930 9016 10 0 ci management server 206 may manage storage of game programs Q and associated data for downloading or access by the C/ gaming devices 202 in a database 206A. Typically, if the gaming system enables players to participate in a Jackpot game, a Jackpot server 207 will be provided to monitor and carry out the Jackpot game.

In a thin client embodiment, game server 205 implements O most or all of the game played by a player using a gaming machine 202 and the gaming machine 202 essentially Sprovides only the player interface, with this embodiment, o the game server 205 provides the game controller. The gaming machine. will receive player instructions, pass these to the game server which will process them and return game play outcomes to the gaming machine for display. In a thin client embodiment, the gaming machines could be computer terminals, e.g. PCs running software that provides a player interface operable using standard computer input and output components.

Servers are also typically provided to assist in the administration of the gaming network 200, including for example a gaming floor management server 208, and a licensing server 209 to monitor the use of licenses relating to particular games. An administrator terminal 210 is provided to allow an administrator to run the network 201 and the devices connected to the network.

The gaming network 200 may communicate with other gaming systems, other local networks, for example a corporate network, and/or a wide area network such as the Internet, for example through a firewall 211.

Persons skilled in the art will appreciate that in accordance with known techniques, functionality at the server side of the network may be distributed over a plurality of different computers. For example, elements L:T P Cl calonS\PDO473.d30C 21/09/07 COMS ID No: ARCS-161952 Received by IP Australia: Time 14:36 Date 2007-09-21 21/09/2007 14:17 LEGAL COMPLIANCE CO.SECRETARY 0262837999 N0.930 D017 11- C' may be run as a single "engine" on one server or a e( separate server may be provided. For example, the game server 205 could run a random generator engine.

Alternatively, a separate random number generator server

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N 5 could be provided. Further, persons skilled in the art will appreciate that a plurality of games servers could be Sprovided to run different games or a single game server Cmay run a plurality of different games as required by the Sterminals.

SGaming systems for implementing games that involve a 0 display of spinning reels as part of the display of the outcome of a game have either a video display or a mechanical display, these later machines most usually being "stepper" machines which have a separate motor for each reel.

The game controllers of such gaming machines have a stop determining function that determines the stop position for each reel. For example, if there are five reels, each having twenty symbols, the stop determining function might determine that the stop positions are positions:.3, 13, 7, 9 and 17. The spinning of the reels is then controlled so that each symbol comes to a stop in the same row, typically a predetermined row in a."window" visible to the player on the display that which corresponds to a player playing a single win line. When a reel stops, the symbols will be in one of a plurality of possible symbol.positions for that reel relative to the stop position.

Embodiments of the present invention relate to gaming systems that allow a player to select how many win lines of a plurality of win lines they will play in each game i.e. a minimum of one win line up to the maximum number of win lines allowed by the game. Each win line is formed by a set of symbol positions consisting of one symbol position from each reel. That is, a predetermined symbol L;\speciticatlons\p CC73. doc 2 ./9/07 COMS ID No: ARCS-161952 Received by IP Australia: Time 14:36 Date 2007-09-21 21/09/2007 14:17 LEGAL COMPLIANCE CO.SECRETARY 4 0262837999 N0.930 P018 -12 0 (C position of each reel is assigned to a win line. The Ssymbol positions that constitute each of the win lines are )usually advertised to the player by markings on the display or diagrams showing the symbol positions that correspond to each win line. Some of the win lines will be horizontal or diagonal lines but others may be non- Slinear combinations of symbols. Typically, the win lines will be constituted by symbol positions in the visible Swindow.

SFigure 6 shows the main functional components of a gaming 0 system 600 of the preferred embodiment. The game controller 605 includes a suspense mode controller 650 that controls whether the gaming system will enter a "suspense mode" where display of the spinning of at least one reel is controlled to be different to the spinning of another reel to thereby enhance game play. The suspense mode controller 650 determines which win lines the player has selected to play and then determines whether a suspense condition is met in relation to the player selected win lines. Depending on the nature of the suspense condition, it may be met in relation to a single win line or by a combination of win lines as described below. The preferred embodiment relates to cases where the suspense condition is either a specila symbol condition or, where there are plural suspense conditions, at least one of which is a special symbol condition. A "special symbol" is a symbol that has a particular impact on the game, for example, a wild symbol that can be substituted for any other symbol or a symbol that has a doubling effect on all prizes. One example of a special symbol condition may be that the special symbol appears on a win line after one of the first two reels spins to a stop.

In order to play the game, the player enters credits using a credit mechanism in a conventional manner. The player L;\$speifications\O0473.4O 21/C9/07 COMS ID No: ARCS-161952 Received by IP Australia: Time 14:36 Date 2007-09-21 21/09/2007 14:17 LEGAL COMPLIANCE CO.SECRETARY 4 0262837999 NO.930 U019 -13- 0 C( then operates the player interface to specify the amount Sthey want to bet per win line and the number of win lines they wish to play by operating a win line selector 660.

That is, the player may play one or a plurality of win lines up to the maximum number of win lines available for the game. For example if there are a maximum of three win O lines, the player may play one, two or three win lines. A CO stop determiner 620, obtains random numbers from the o random number generator 610 and uses them to determine the stop position of each of the reels. As described above, o the stop positions will specify which symbols of each reel 0 .will correspond to win lines.

The stop positions are supplied by.the stop determiner 620 to a reel controller 630 which controls the display of the spinning of individual reels to stop positions on display 640. In normal operation of a video display this will result in a display where the reel is animated so that initially the reel is imperceptible to give the impression of spinning and then the symbols become perceptible so that a certain number of symbols (for example 6 symbols) can be viewed by the player before the reel reaches the stop position. In a mechanical display, the reel needs to be moved from its current stop position (from the previous game) to the new stop position. The duration and speed of spinning during a normal display of spinning will either be the same for each reel or within a normal range.

As described in further detail below the reel controller 630 may also receive an adjustment instruction from suspense mode controller 650 which is used by the reel controller 630 to control the display of spinning of the reels to make display of at least one reel different. The stop positions are also provided to a game outcome processor 670. The game outcome processor 670 processes the stop positions in accordance with the game rules 675 and the selected win lines to determine whether the player L:\spCttiCt;l oa\P 0473 .dcc 21/oD/C7 COMS ID No: ARCS-161952 Received by IP Australia: Time 14:36 Date 2007-09-21 21/09/2007 14:17 LEGAL COMPLIANCE CO.SECRETARY 4 0262837999 NO0.930 D020 -14 CN has won. The game outcome processor 670 alters meters 680 O based on the game outcome and causes the prize outcome to

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CO be displayed on the display 640 once the reel controller 630 has caused the display 640 to display all reels spinning to a stop position.

The suspense mode controller 650 determines whether one or C more adjustment instructions are to be supplied to the o reel controller 530 during a game. The adjustment instruction causes the reel controller 630 to alter the o display of spinning of at least one reel.

The suspense condition determiner 654 processes the win lines that are selected by win line selector 660 in conjunction with the reel stop positions produced by the stop determiner 620, to thereby determine the symbols that will appear on win lines that a player has selected.

This allows the suspense condition determiner 654 to determine whether a special symbol condition or another suspense condition will be met such as a predetermined game outcome appearing possible after a certain number of reels reach their stop positions. In an embodiment, the only suspense condition is a special symbol condition. By way of example, a special symbol condition may be that a special symbol appears on a specific reel or that a special symbol in combination with the other symbols corresponds to an initial portion of a winning symbol combination. Special symbol conditions 653a are typically a subset of suspense conditions 653. For example, the suspense condition determiner 654 may run a specific sub-routines to monitor for each suspense condition being monitored. For example, a sub-routine to count a number of symbols of a certain type. If a suspense condition is satisfied, adjuster 656 determines an adjustment and supplies it to the reel controller 630. If in a specific embodiment only one type of adjustment is applied, the L \Sp lcrtcatilons\?00473.oC 21/09/07 COMS ID No: ARCS-161952 Received by IP Australia: Time 14:36 Date 2007-09-21 21/09/2007 14:17 LEGAL COMPLIANCE CO.SECRETARY 0262837999 NO.930 021 15 15 0 (C adjuster can send an adjustment instruction to the reel O- controller 630 which is configured to make the relevant O adjustment. Depending on the embodiment the adjuster 656 may calculate the adjustment based on a predetermined formula or obtain the relevant adjustment from adjustment data 657 and send it as an adjustment instruction specifying the adjustment to reel controller 630 for C implementation.

Referring to the flow chart of Figure 7, at step 710 a new o game is started. At step 720 a player operates the win 0 line selector to select a number of lines to play. At step 730 the stop determiner determines the stops and supplies data specifying these to the reel controller and the possible outcome processor. At step 740 the suspense conditioner determines whether a special symbol condition or other suspense condition that is monitored exists and hence whether the adjuster should generate adjustment data based on the possible outcomes. If no suspense conditions are met the process stops 750 for this game. If one or more suspense conditions are met, at step 760 the adjuster determines an adjustment and supplies it to the reel controller as adjustment data. At step 770 the reel controller controls displays of spinning of each reel to the stop position based on.the stops and adjustments. At step, 780 the game ends.

SUSPENSE CONDITIONS Other suspense conditions may be based on a predetermined game outcome being possible after one or more reels are spun to a stop position. The game outcome may be an entry in a pay table for the game or may be a value derived from the pay table such as a prize threshold. The number of reels that are required to have reached the stop position may form part of the suspense condition. If a prize is awarded for five symbols of the same type, it may be I \Spp cIlcations\PCO473.idc 21/09/07 COMS ID No: ARCS-161952 Received by IP Australia: Time 14:36 Date 2007-09-21 21/09/2007 14:17 LEGAL COMPLIANCE CO.SECRETARY 4 0262837999 N0.930 9022 -16appropriate to trigger a suspense condition after two or Sthree symbols of the same type have been spun to a stop on the same win line.

A suspense condition may be based on the predetermined game outcome being that a prize is above a particular .threshold value. For example, the suspense condition determiner 654 may determine a number of possible game o outcomes in the pay table appear possible after three of the reels have spun to a stop and based on the associated Sprizes determines whether any of the prizes are above a C4 preset threshold.

A suspense condition may be based on a combination of two or more factors, for example the size of the prize corresponding to the outcome that appears possible and how likely it appears after a reel has spun to a stop that the player will win the prize; that is, based on the probability of the outcome occurring.

By way of specific example, in one game a prize may be -awarded for five aces and may be the maximum prize for that game. A lesser prize may be awarded for four aces.

A suspense condition may be set in relation to the five ace prize, so that if the first three reels each have aces on a win line, a suspense mode may be triggered. That is, the five ace prize appears to be possible after three reels and is judged to be sufficiently likely once the first three reels have aces. If the first three reels are two aces and a king, suspense mode is not entered into and suspense mode will only be entered into if three of the first four reels are aces because it is not until the fourth reel that it is deemed that it will appear sufficiently likely that they will win the four ace prize and hence it is deemed appropriate to enter the suspense mode in view of the size of the prize. In this example, for a higher prize a relatively lower likelihood is L; \$Seciticatio 3s\?00473.aoc 21/09/07 COMS ID No: ARCS-161952 Received by IP Australia: Time 14:36 Date 2007-09-21 21/09/2007 21/092007 14: 17 LEGAL COMPL IANCE CO. SECRETPRY 4 0262937999NO90 02 NO.930 9023 -17 0 sufficient to trigger a suspense mode.

The above suspense conditions relate to a symbol -combination on a single win line, however the suspense condition may be based on multiple win lines. ror example, in one embodiment a-s.tuspenSe- mode -my -only beentered into if a game outcome from the pay table appears possible in relation to two-or more win lines played by a 0 player. That is, a subset of all winning outcomes specified in the pay table may be sufficient to initiate a o suspense mode if two or more such winning outcomes appear o possible for different win'lines.

Alternatively, it may be required that the-total of the win outcomes that appear possible across all win lines played by the player exceed a prize threshold such that possible outcomes rrom separate wins can contribute to that total.. That is, apparent game outcomes with prizes below the threshold on art individual win line will not trigger a suspense mode but if the total of prizes that appear possible after a certain number of reels exceeds the threshold then suspense mode may be entered into.

Different thresholds may be set for different numbers of reels having spun to a stop and/or different numbers of win lines.

AD JUSTMENTS The display may be adjusted by altering the duration of the spinning of one or more reels. For example, if two aces appear on the first reel and second reels, the duration of spinning of the third reel may be extended.

Alternatively, the speed of spinning or a reel may be adjusted. For example, if aces appear on the first four reels, the duration of the spinning of the fifth reel may be the same but the speed of the spinning of the fifth COMS ID No: ARCS-i 61 952 Received by 1P Australia: Time 14:36 Date 2007-09-21 21/09/2007 14:17 LEGAL COMPLIANCE CO.SECRETARY 4 0262837999. N0.930 P024 -18- 0 ci reel may be slowed so that the player can more readily perceive the symbols on the reel as they move into position or sped up as an indicator of excitement.

5 Another possible adjustment of the'displ a y is to reverse the direction of spinning of the reel.

It is possible to combine variations of spinning. For o example, in an example where a winning outcome appears possible on multiple reels, if a winning outcome appears opossible on one reel, the duration may be altered but if 0it appears possible on two win lines, both duration and speed may be altered.

It will also be apparent to persons skilled in the art that multiple duration and multiple speed variations may be possible. The adjuster 656 may determine a size of an adjustment dependent on: a) the size of the prize; b) the number of reels in relation to which a suspense condition is met; a) a number of suspense conditions that are met; or d) the likelihood of a prize outcome.

For example, in a case where five aces appear on a reel, the duration of the spin may be extended for a first time after two aces appear, a second time after three aces appear and a third time once four aces appear and it appears highly likely the player will win the prize corresponding to five aces.

A suspense mode will be ended if a suspense condition is no longer met and there are more reels to be spun.

Example L:\Spaci±icmtim\FC0'Q3.doc 3 1/09/07 COMS ID No: ARCS-161952 Received by IP Australia: Time 14:36 Date 2007-09-21 21/09/2007 14:17 LEGAL COMPLIANCE CO.SECRETARY 4 0262837999 N0.930 D025 19- 0 C( Referring to Figure 5 there is shown an exemplary display o .500 that may occur during a game. In the gaming machine up of Figure 5 five lines of symbols 520A to 520E are displayed on the display once all reels have spun to a stop. There are five reels 510A to 510E. While five lines are displayed, only three lines 530A, 530B and 530C Sare win lines. If the player selects to play one win Sline, they play win line one 530A. Win line two 530B is o also played if they select two win lines and win line 10 three is added 530C if they select three win lines.

0 Consider an example where a player selects to play two win lines. In this example a suspense mode is initiated if a Joker symbol appears on one of the first two reels of a win line and continues until a win line has two different symbols that are not jokers. As the player is only playing two win lines, suspense mode can only be activated in relation to these win lines. Assume that reels one to five 510A to 510E are spun to a stop in numerical order.

Persons skilled in the art will appreciate that the order of the reels displayed may be varied depending on the embodiment. Once reel one has. spun to a stop, suspense mode is activated because the player has a Joker on win line two. In this game a Joker acts as a wild symbol which may be substituted for any of the other symbols.

Thus irrespective of the symbol that appears on win line two on reel two, the player will have an increased apparent chance of winning. After reel two spins to a stop there are two jokers on win line two and suspense mode is maintained. After reel three, there is a King and two Jokers on win line two and the suspense mode is maintained. When reel four spins to a stop, a suspense condition is no longer met in relation to win line two because there are two different symbols apart from the Joker and hence a player can no longer obtain five of the same symbols on win line two. Accordingly the machine reverts to normal display mode.

T !\Specllfcations\PCO 4?3.doE 2i/09/07 COMS ID No: ARCS-161952 Received by IP Australia: Time 14:36 Date 2007-09-21 21/09/2007 14:17 LEGAL COMPLIANCE CO.SECRETARY 4 0262837999 NO.930 P026 r^ 20 0 Various modifications will be apparent to persons skilled iy) in the art, and should be understood as falling within the Sscope of the appended claims.

For the purposes of this specification it will be clearly Sunderstood that the word "comprising" means "including but Snot limited to", and that the word "comprises" has a o corresponding meaning.

Sit is to be understood that, if any prior art publication o is referred to herein, such reference does not constitute an admission that the publication forms a part of the common general knowledge in the art, in Australia or any other country.

\sppCIZCt1 lDZ\P-473-.do= 22/09/0? COMS ID No: ARCS-161952 Received by IP Australia: Time 14:36 Date 2007-09-21

Claims (1)

1. 21- 0 0 C( THE CLAIMS DEFINING THE INVENTION ARE AS FOLLOWS: CO 1. A method of displaying an outcome of a game to a player comprising: C 5 obtaining a stop position for each of a plurality of reels, each reel having a plurality of symbols at least C one reel having a special symbol, each stop position C specifying which symbol or symbols of each reel will Scorrespond to a win line; displaying spinning of each reel to the reel's Sstop position; determining whether a special symboi condition is met; and making the display of the spinning of at least one subsequent reel different to display of at least the first reel if the special symbol condition is met. 2. A gaming system comprising: a stop determiner configured to determine a stop position of each of a plurality of reels, each reel having a plurality of symbols, each stop position specifying which symbol or symbo.ls of the:reel will correspond to a win line; a display for displaying spinning of each reel to the reel's stop position with at least a first reel being spun normally to the first reel's stop position; and a suspense mode controller configured to determine whether a special symbol condition is met and make the display of the spinning of at least one subsequent reel different to display of at least the first reel if the special symbol condition is met. 3. A game controller for a gaming system, the game controller configured to: determine whether a special. symbol condition is met based on a stop position for each of a plurality of reels, each reel having a plurality of symbols at least \PQ04 7 3 100 ZtOC /07 COMS ID No: ARCS-161952 Received by IP Australia: Time 14:36 Date 2007-09-21 21/09/2007 14:17 LEGAL COMPLI ANCE CO.SECRETARY 4 0262837999 NO.930 D028 0, 0, 22 one reel having a special symbol, each stop position specifying which symbol or symbols of each reel will correspond to a win line; and make the display of the spinning of at least one subsequent reel different to display of at least the first reel if the special symbol condition is met. L:\Specificatio ne\P00 4 7 3.doc 21/09/07 COMS ID No: ARCS-161952 Received by IP Australia: Time 14:36 Date 2007-09-21