Coliseum, it turns out, is an adapted version of an arcade game called Daikaiju Ultra Monsters, which has also been adapted into a TV show from Ultraman producers Tsuburaya Productions. Thankfully, Namco Bandai has swapped out pretty much everything from the original game. While the arcade game is one of those card-based things that are so popular in Japan, Daikaiju Ultra Battle Coliseum uses Wiimote motions to control the (ultra) fighting.
