In Cosmo Fighters, players can engage in one-on-one battles or team up against groups of opponents, honing their skills against AI before challenging friends. The game features a variety of combat mechanics, including tricks and combos that players can master through practice.

The storyline of Cosmo Fighters revolves around a cosmic battle where players must train and prepare to face off against friends and foes in an interstellar arena. The narrative emphasizes the importance of skill development and competition in a vibrant space setting.

Cosmo Fighters stands out with its DS Download Play feature, allowing players to share a demo with friends, enabling them to join in on the action without needing their own copy of the game. This accessibility, combined with support for up to four players, enhances the multiplayer experience significantly.