for no$gba : go in your no$gba click on option next click on save option and quit the apllication after that go in your microSD card and click on configuration parametre then change this code == Compressed to this code == Raw and your save have 512ko
@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