The Crime File

A Stacked Symbol refers to a state where multiple symbols of the same kind exist in the form of a long, rope-like strip on a reel. When the reel stops spinning, part or all of this symbol stack appears on the screen, filling several positions, or even the entire reel, with the same symbol. The core goal of this feature is to activate multiple paylines or ways to win simultaneously to create large-scale, concurrent wins.

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.