I can erase any 3ds and ds game for you. Nintendo made certain games like Super Monkey Ball 3D on 3DS, Infinite Space on Ds, Blazblue: Continuum Shift ll, Resident Evil Mercenaries 3D, or games like pokemon ranger where you can't erase any (or all) data. I know games like pokemon ranger only allows one manaphy egg per CARTRIDGE. I can erase it (more specifically the ranger net) and this allows you to get the egg again. I tested it out myself and it works! I can erase any game for you. Doing so will make the game look as if it has never been played. People worry about erasing games because they think it'll corrupt the game but my technique takes no longer than 10 seconds and I did it on several games with no problem. I can also save your file as a back up just in case something does happen. I will erase any game for $10 per cartridge. Cash only. I will make a deal if you want more than one cartridge done. Will meet in Centralia/Chehalis area. Let me know. Thanks.