Cracker Jack is a three reel, one payline, and two coin slot machine. It has a wild, multiplier symbol and the maximum payout is 5,000 coins. The Cracker Jack. symbol is wild and substitutes for any other symbol to complete winning combinations. A single Cracker Jack. symbol doubles the payout of any combination it completes. Two Cracker Jack symbols quadruple the payout of any combination they complete.