1. A gaming method for a gaming system, the gaming method comprising: receiving a wager; causing a display unit to generate an image representative of a game; determining an outcome of the game represented by the image; determining a payout according to the outcome of the game and the wager received; determining if at least one first trigger event has occurred; dispensing at least one game piece if the at least one first trigger event has occurred, the at least one game piece having at least one hidden image and at least one concealing image disposed thereon, the at least one concealing image limiting the visibility of the at least one hidden image; determining if a second trigger event has occurred; receiving at least one identifier associated with the at least one game piece if the second trigger event has occurred; determining a payout according to the at least one identifier; and causing a display unit to generate a reveal pattern, the reveal pattern cooperating with the at least one concealing image of the at least one game piece to make the at least one hidden image visible if the second trigger event has occurred.