Double Dynamite Slots - Version 4.7 Another in our series of popular nine-wheel slot machine games. Has eight pay lines on which you can bet up to eight credits each (up to 64 total credits bet per spin).The Dynamite symbols are wild and also increase the payout of a winning line. Any line with one Dynamite symbol doubles the payout of the that line. Two Dynamite symbols quadruple the payout of a winning line. Also includes the Big Blast Board, a pyramid with 15 boxes to choose from. You can risk your winnings from any winning spin and go for the 5X multiplier (or hear your money flush down the drain).