here is a tutorial of the opening process here:

http://gameboyretro.co.uk/?page=tutorial&sub=opengb

---

Q: where I can get a proper screwdriver to open a Nintendo Gameboy?

A: http://www.newelectronx.com/proddetail.php?prod=gamebit

http://www.goldenshop.com.hk/AI-trad/gba/sdriver.htm

http://www.gamechoiceclub.com/navigateProduct.asp?product_id=179

http://www.consoleplus.co.uk/product_info.php?pName=tri-wing-screwdriver-for-gbagbaspwii

http://www.play-asia.com/paOS-13-71-1e-70-1fe.html

http://www.flashlinker-shop.com/product_info.php?cPath=26_40_50_60_63&products_id=484

http://www.gamebits.dk/shop/skruetraekker-til-gba-651p.html

http://www.modcomshop.de/triwing-schraubendreher-p-2127.html

http://www.wolfsoft.de/shop/product_info.php/products_id/10760/product/spezial-schraubendreher-fuer-wii-/-gba-/-nds-/-nds-lite...-triwing.html custom essay

http://www.hardcore-gamer.net/tienda/product_info.php/cPath/48_25_163/products_id/1321

search google for triwing screwdriver or try this set http://www.newelectronx.com/proddetail.php?prod=security-screwdriver-bit-set-100

or, alternatively, you might try to file down one wing of a philips head screwdriver ...

I think it's better to use a nail as the starting point for a Nintendo screwdriver; the metal is soft enough to be filed manually, and a dremmel tool would do wonders /Cycler

I actually have a few Gameboys that use just a phillips head screwdriver./Panda Jam

How Do I open my Gameboy Color? http://youtube.com/watch?v=lQikASmmpm8