Patent attributes
A gaming device comprises a display, a processor, and a memory storing (a) reel strip data defining a set of reel strips, each reel of the set of reel strips comprising special symbols and regular symbols; and (b) instructions. The reel strips are used to select symbols to populate positions of a playing field shown on the display. When two or more of the same special symbols occupy adjacent positions of the playing field, they may merge into a single position occupied by one of the special symbols in question. If three or more special symbols are adjacent, all merge into a single position and a higher-value special symbol. This merge may be signaled by a graphic such as an animation or image, a sound, a light, a vibration, or other audiovisual or haptic indicator. The higher-value special symbol thus replaces one of the adjacent special symbols while the rest are removed or disappear. Further, values of the special symbols (prior to any merge) may be added to an eventual payout amount to be provided at an end of a series of related games.