It was released in Japan on December 2, 2008, in North America on August 3, 2009, and in Europe on February 12, 2010, by Gamebridge as Overturn: Mecha Wars.

[2] The game is set on the planet Zastadion where the player competes in a tournament that sees them controlling a hovering mecha armed with an arsenal of weapons to battle others in an arena.

Players can compete in six classes of increasing difficulty: Rookie, Novice, Elite, Ace, Grand and Master, and choose from eight mechas, each with different attributes.

Although Nintendo Life found Overturn's single player component somewhat easy and underwhelming, they felt that the online multiplayer was impressive and also praised the game's presentation.

[3] However, IGN didn't find much excitement from the game's one-on-one mech battles, and noted that much of the story in the Japanese version was excised in the North American release.