What you see on the right is the Wild symbol for the Iron Man 2 slot machine game. As usual, the Wild symbols will stand for all other symbols (except for the scatter symbols) to help you create the highest possible combination. There is also an extra payout for 2 or more symbols on a bet line, which replaces the payout of the normal symbols if it is greater.
The Scatter symbol does not have to appear on a bet line in order to generate a payout or trigger the Free Spins. Two or more Scatters symbols in any position on the reels gives the right to a payout, while 3 or + scatter symbols will activate 10 Free Spins with a progressive multiplier (the winnings are multiplied by 2 for the first round, 3 for the second and so on) and a frozen Extra Wild symbol. This extra wild symbol appears in the center of the reel 3 during the entire mode and as usual will stand in for all other symbols with the exception of the Scatter symbols. You can not win any more free spins during the free spin mode.
During the Mystery Progressive Jackpot Game you can win one of four progressive jackpots, the Power, Extra Power, Super Power and the Ultimate Power Jackpot. These multiple Bonus Games are triggered at random, you do not need to have any sort of combination of symbols winning or otherwise in order to activate it! At the beginning of the game you stand in front of a screen composed of 20 squares. Under each square is the symbol of one of the four jackpots. You need to find 3 identical symbols in a limited period of time and the corresponding jackpot will be yours! This is a jackpot which is common to all the comic slot games by playtech.