How to fit a USB drive in to an old Game boy advanced cartridge. For looks...
Step 1: Gather Required Materials
Pretty basic. You need:
1. Small screwdriver, it uses a triangle head but a small enough Philips or Flathead will work with a little pressure.
2. Gameboy cartridge, DONT USE A POKEMON GAME, its a waste :)
3. Razor blade, you can use a dremel, but I dont have one because im poor :/
4. and finally, A USB drive. Can be any size, i used a 2 GB
Step 2: Separate the Halves of the USB Drive
You can use the Flathead for this, you wont be needing the outside case so you can break it if necessary.
Step 3: Take the Game Cartridge Apart
On the back there is one screw and once removed all that you have to do is slide the back up and off :)
Step 4: Start Hacking Away
I took the razor blade and cut about 6 groves along the section i was going to cut and broke them off with the screw driver. The Dremel would be optimal right now.
The cut part on the back side needs to be a little bigger so you can slide the two halves back together.
After that you can fit the USB snugly inside of the holes.
Step 5: Reassembly
Now all that is left is to reassemble it the opposite way you took it apart and your done :D
Step 6: Extras
Two things you can do is to take the sticker off as i have done, and find a way to make use of the slide mechanism that is on the original USB drive so that yours slides in and out of the game cartridge.