Bet on one or more of the 8 gems — tap a gem as many times as you like. Each round the miner digs up one gem; you win if it carries a bet.
TNT bonus: sometimes he blasts TNT and finds 3, 4 or 5 gems at once. Every one with a bet pays.
Win: each gem draws one multiplier from its list below. Bets on it × bet per gem × multiplier.
Gamble: after a win, double it by guessing SMALL (1–7) or BIG (8–14). Up to 5 times, or collect any time.