Slot machine game with roaming wild card

• US 6,089,977 A
• Filed: 08/27/1998
• Issued: 07/18/2000
• Est. Priority Date: 02/28/1996
• Status: Expired due to Term

• Current Assignee: Aristocrat Technologies Australia PTY Limited (Aristocrat Leisure Limited)
• Original Assignee: Aristocrat Technologies Australia PTY Limited (Aristocrat Leisure Limited)
• Inventors: Bennett, Nicholas Luke
• Primary Examiner(s): LAYNO, BENJAMIN
• Application Number:
  US09/125,930
• Time in Patent Office: 691 Days
• Field of Search: 463/9, 463/12, 463/13, 463/16, 463/20, 273/143 R, 273/138.2, 273/138 A, 273/138.1
• US Class Current: 463/20
• CPC Class Codes: G07F 17/34 depending on the stopping of moving members in a mechanical slot machine, e.g. "fruit" machines

Abstract

A slot machine 40, of the type having a video display screen which displays a plurality of rotatable reels 42 carrying symbols 43, is arranged to pay a prize on the occurrence of a predetermined symbol or combination of symbols. The game includes a special feature which is invoked when a special triggering combination of symbols occurs. Once the special feature is triggered a wild symbol moves around the screen progressively replacing each symbol in the display.

Claims

1. A gaming machine having display means, and game control means arranged to control images displayed on the display means, the game control means being arranged to play a game wherein a plurality of symbols are randomly selected and displayed on the display means and, if a winning combination results, the machine awards a prize, the game being characterised in that, if a predetermined triggering event occurs, a wild card symbol is displayed in a first display location of the displayed plurality of randomly selected symbols and is then progressively moved to each of a predetermined number of other display locations before the next randomly selected symbols are displayed, a prize being awarded for winning combinations formed with the wild card symbol for each location in which the wild card symbol is displayed.

2. The gaming machine of claim 1 wherein the display means comprises a video display simulating a set of rotatable reels, each carrying a plurality of symbols.

3. The gaming machine as claimed in claim 2, wherein the triggering event is the occurrence of a special symbol or a combination of special symbols displayed in a particular arrangement.

4. The gaming machine of claim 3 wherein the triggering event is the occurrence of a first symbol, appearing in the first (or left hand) column of the display and a second symbol appearing in the last (or right hand) column of the display.

5. The gaming machine of claim 4 wherein the first symbol is an iceberg and the second symbol is a symbol having a coin background.

6. The gaming machine as claimed in claim 2, wherein the wild card symbol is a penguin and this symbol is moved from one location to another via an animated walking motion.

7. The gaming machine as claimed in claim 2, wherein the wild card symbol is first displayed at a location at one end of the display and is progressively moved from location to adjacent location until it has been displayed in each and every location of the display.

8. The gaming machine of claim 1 wherein the display means is a video display arranged to display the cards of the hand being selected from a standard 52 or 53 card deck.

9. The gaming machine of claim 1, wherein the display means is a video display arranged to display the cards of the hand being selected from a standard 52 or 53 card deck.

10. The gaming machine as claimed in claim 9, wherein the triggering event is the occurrence of a special symbol or a combination of special symbols displayed in a particular arrangement.

11. The gaming machine of claim 10, wherein the triggering event is the occurrence of a first symbol, appearing in the first (or left hand) column of the display and a second symbol appearing in the last (or right hand) column of the display.

12. The gaming machine of claim 11, wherein the first symbol is an iceberg and the second symbol is a symbol having a coin background.

13. The gaming machine as claimed in claim 9, wherein the wild card symbol is a penguin and this symbol is moved from one location to another via an animated walking motion.

14. The gaming machine as claimed in claim 9, wherein the wild card symbol is first displayed at a location at one end of the display and is progressively moved from location to adjacent location until it has been displayed in each and every location of the display.