i have found the way to play it in cyclods download the latest cyclods firmware 1 57 and then try to play it if you can't play try the patched rom(Rudolph) and then enjoy sorry for my bad english
@Xdqwerty, Osu! Tatakae! Ouendan! is the Japanese version of the game, different settings/characters/songs but otherwise identical mechanics. I played that before I knew about Elite Beat Agents lol. Both fantastic games https://en.wikipedia.org/wiki/Osu!_Tatakae!_Ouendan