Win O Mart plays out on a 5x4 reel grid equipped with 26 paylines. Winning combinations form by landing matching symbols across these lines, starting from the leftmost reel. Low-paying icons consist of standard card royals, while premium symbols include quirky items like cigarettes, hamburgers, and a cashier. The base game keeps mechanical execution straightforward while leaning into an unusual supermarket aesthetic.

Triggering the main feature requires landing 3 or more bonus symbols, which grants entry into the multi-level Bonus Bundle round. Each level introduces distinct mechanics such as expanding wilds, progressive multipliers, symbol removals, and prize wheels. Given its high volatility rating, this slot suits players who prefer a mathematically demanding experience with potential for large payouts.