Patent ID: 11915558
Assignee: IGT
Field: Control (Instruments)
Classification: CPC G | IPC G

Claim 8:
9. A gaming system comprising:
a processor; and
a memory device that stores a plurality of instructions that, when executed by the processor, cause the processor to:
for a first play of a game, responsive to an occurrence of a designated symbol retention event, cause a display, by a display device, of a retention of a designated symbol in association with a symbol display position,
for a second play of the game that occurs after the first play of the game, responsive to an occurrence of a designated symbol modification event:
cause a display, by the display device, of a modification of an attribute of the designated symbol retained in association with the symbol display position, the modification of the attribute of the designated symbol retained in association with the symbol display position occurring independent of any modification of any symbol displayed in association with the second play of the game, and
cause a display, by the display device, of a retention of the modification of the attribute of the designated symbol until a retained designated symbol removal event occurs, and

for a third play of the game that occurs after the second play of the game, responsive to an occurrence of the retained designated symbol removal event, cause a display, by the display device, of ceasing the retention of the designated symbol in association with the symbol display position.