Exploring the Game, Legal Options, and Modern Playthroughs What is Daikaijuu Battle Ultra Coliseum DX? Daikaijuu Battle Ultra Coliseum DX is a strategic 3D mecha-kaiju battle game first released for the PlayStation in 2004, with a PC version titled DX launched in 2006. Developed by Namco Bandai (now Bandai Namco), it is the third entry in the Daikaijuu Battle series, offering intense 3v3 battles where players can control either giant kaiju or mechs to outmaneuver opponents.