Double Sevensby IGT Interactive

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It may be possible that you had too many Harvey Wallbangers but the reason you are seeing double right now is the double sevens in the mystery round. Just match up three symbols on any of the five paylines to win. There is a wild joker who can wreak some havoc and fun by reaching across the reels to help you win. The mystery prize can be from 500-5000 credits. Sorry the Joker is no help with this winning combination but he does double prizes when he helps fill a line.

You will have plenty of opportunities to choose whether to simply collect your prize after a winning spin or risk it in the doubling game. And don't forget, with every spin you'll have a chance to take down the progressive jackpot.