Masked Mayhem is built on a 5x5 grid layout with 50 fixed paylines. Winning combinations form by landing matching symbols across adjacent reels starting from the first reel. The character symbols are led by orange, green, and blue fighters, complemented by tacos, corn, and card suits. During any base game spin, win zones can appear randomly from 2x2 to 5x5 in size to collect values from instant prize pinatas.

The free spins feature starts when 3 or more bonus symbols land on the reels. Players progress through 4 distinct levels by collecting bonus symbols, which expand the win zone up to 5x5 and increase multipliers up to 5x. This medium-high volatility slot suits players who enjoy progressive bonus features and mechanical depth.