Compiled just fine after compiling armips on Ubuntu 15.10. Booted using ctrbootmanager and then updated emuNAND to 10.3. eShop works fine and downloaded Code Name Steam v1.2.0 update easily.
@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