Cosmos Chaos (USA) / バトルコスモス (Japan) is an action-packed Nintendo DS game developed by Now Production and published by Nintendo in Japan in 2009. The game is set in a futuristic world where two powerful forces, the Cosmos and Chaos, are locked in an eternal struggle. Players take control of a young girl named Lily, who is the only one who can restore balance to the world by using the power of the Cosmos. Players must battle their way through various levels, defeating enemies and collecting power-ups in order to progress. The game features a unique battle system which requires players to use a combination of physical attacks, special abilities, and items to defeat enemies. There are also various mini-games and puzzles to keep players entertained. Cosmos Chaos also features a multiplayer mode, allowing up to four players to battle each other on the same DS. Players can also link up with friends to take on the game's co-op challenges. The game is presented in a colorful, anime-style art direction, with detailed visuals and an upbeat soundtrack. With its unique battle system, colorful visuals, and multiplayer mode, Cosmos Chaos is sure to provide hours of fun for Nintendo DS owners.