So I'm attempting to make my own little reproduction cart of Mother 3, so that's why I'm asking these questions. I'm looking for a GBA flash cart that I can force to boot directly to a rom without having to access any menus, as if it was a actual GBA game. Also if possible I'd like a cart that can fit inside a REAL GBA cart. I'm going to put 1 game on it and never change it again so I want to look authentic after I put the game on it without sd card slots or usb female ports on it. Can the EZflash 1-3 do these things/fit inside a normal gba cart/work with a translated Mother 3? If not what flash cart can? I hear the battery dies out fast though, is this really the best choice?