One Fight Arena is a mobile match-3 puzzle fighting game based on ONE Championship. Players compete in real-time PvP battles where matching tiles triggers MMA attacks, defenses, combos, and special abilities. The game features licensed ONE Championship athletes, customizable fighters, deckbuilding with gear and skills, athlete progression, ranked leagues, tournaments, quests, and seasonal events. Battles are designed as short tactical matches, combining puzzle-board strategy with mixed martial arts combat.