HI, saw your posting on the downgrade post
I also have a japanese n3ds, how did you manage to proceed downgrade without that 000400102002CA11.cia?
i had two lucky times starting to install, but it stopped when it was looking for that cia
@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