A tool for fixing old Gameboy Color and Advance Games! When the battery in an old game burns out, you are no longer able to save your game. Changing the battery allows the game to be saved again, but to access it you need to get past a screw with a head that is very unstandard, which is where this comes in! This screwdriver head is designed to fit in a standard removable head screwdriver and has the two necessary heads to open these games, Tri-head and reverse star, so that you can replace the battery and keep on playing!