Dangit! I also did all the steps and everything but "reveal code" is just popping up again when I click to reveal it. Does anyone have a spare code or two? I'd be eternally grateful!
@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