Abstract: Upon a trigger event occurring during a main game on a video slot machine, a number of free games having a special feature are awarded to the player. For each trigger event that occurs during the free games, the lowest value symbol displayed for each free spin becomes a wild symbol or other high value symbol. The converted symbols remain converted during the entire free game session in one embodiment. In another embodiment, the converted symbols revert back to the original symbol if no further trigger event occurs in the free games. The accumulation of high value symbols over multiple spins increases the chances of the player winning an especially large award, such as a jackpot.

Abstract: Upon a trigger event occurring during a main game on a video slot machine, a number of free games having a special feature are awarded to the player. For each trigger event that occurs during the free games, the lowest value symbol displayed for each free spin becomes a wild symbol or other high value symbol. The converted symbols remain converted during the entire free game session in one embodiment. In another embodiment, the converted symbols revert back to the original symbol if no further trigger event occurs in the free games. The accumulation of high value symbols over multiple spins increases the chances of the player winning an especially large award, such as a jackpot.