Bangai-O Spirits (バンガイオースピリッツ) is a 2008 Nintendo DS game developed by Treasure. It is the sequel to the cult classic Dreamcast game Bangai-O released in 1999. The game has a unique and chaotic 2D action shooter style, with the player controlling a mech suit to battle against a variety of enemies. The game includes a variety of levels and weapons, and the player must use them to defeat the enemies and complete the levels. The game also includes a level editor, allowing players to create their own levels and share them with others. The game also has an online multiplayer mode, where players can battle against each other and share levels. The game has received positive reviews, with critics praising its unique gameplay and level editor. Bangai-O Spirits is a fun and chaotic action shooter game, and is a must-have for fans of the genre.