Four are needed to trigger the bonus round. This continues until no winning lines are visible. With each winning spin the winning symbols explode and are removed to be replaced with new ones.
The game comes with four high paying gemstone symbols from the emerald green (2x for six in a payline) to the round purple stone (50x for six in a payline).Bonanza pays out left to right on adjacent symbols to the tune of 117,649 winning combinations.
You will definitely find that this is a high volatility number, so be warned – the bonus round is where you need to head if you want to win big here.