| 摘要 |
<p>A machine includes a display configured to display symbols in a game, a processor, and software, that when executed by the processor causes: the selection a first symbol set from a global symbol group, wherein the first symbol set includes at least two symbols; the display of the selected first symbol set; the determination that a second symbol set, which is a sub-set of the selected first symbol set, satisfies a trigger condition; in response to the determination, for each symbol in the second symbol set, the selection of a corresponding replacement symbol from the global symbol group, such that a third symbol set 600 consisting of the replacement symbols satisfies the trigger condition; and the display of the third symbol set 600. A random number generator can be used to select the symbols of the first symbol set. The symbols of the first symbol set can be arranged in virtual reels and each symbol of the first symbol set can be represented by an image. The trigger condition may relate to combinations and arrangements of symbols in the first symbol set. All the symbols of both the second symbol set and the third symbol set can be the same.</p> |
