Pyramids of Mystery 2

A Mystery Symbol is a surprise feature where symbols appear on the reels with their identities hidden, and after the spin stops, all mystery symbols on the screen simultaneously transform into one single, identical symbol. The core of this feature is to provide players with dramatic tension and anticipation of "what symbol will it be?" until the moment the result is revealed, and the thrill of a reversal where, depending on the outcome, an ordinary spin can be turned into a moment of huge payouts.

Ante Bet is a special betting mode where the player pays a small additional cost on top of their base bet to artificially increase the probability of entering the game's core bonus feature (usually free spins). It is a kind of 'strategic booster' offered to players who want to enjoy the highlight moments with a higher probability than a regular spin, but at a lower cost than directly buying the bonus game.