Hello Hello.
After many days and tries to fix my problem I have come to the conclusion that I am confused as hell.
New 3DS/XL Firmware 10.5.0-30U Using Sky3DS(Blue)
So. . .
I have a 160 hour save file on Monster Hunter 4 U and I have been trying to go online.
I have a retail copy of...
@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