Step 1: Opening the GameBoy
because of this unfortunate circumstance, we will have to make our own special screwdriver for this special screw. (that is, of course, assuming you dont have a compatable screwdriver)
what you need:
a rough sander attachment
a vice is extreemly useful
a well lighted area (the cuts are going to be small)
a high attention span
a gameboy color
a small (really small) hex wrench
clamp the hex wrench in the vice REALLY tightly. make sure your dremel is on the lowest power setting, and insert the rough-cut sander attachment.
sand the tip of the hex wrench down to a triangle, each of the three corners matching up with the notches on the screw.
put on the fine-cut sander bit and sand the SIDES of the triangle inward, untill the wrench fits into the screw notches.