Yeah, I have a flash cart for my 3DS with all my old DS games on it. I can't leave it in the 3DS or it will drain my battery, because it's basically just anothe

Yeah, I have a flash cart for my 3DS with all my old DS games on it. I can't leave it in the 3DS or it will drain my battery, because it's basically just another entire mini-console running in the 3DS.