Aaaawwwww... a gameboy...kinda make me want to retrieve it from my hellhole of a garage. I wonder if it still working?
If I remember correctly, those old gameboys are made to last. They once found an old gameboy color back then that was was pretty much bombed to hell but it was still working fine.
Sadly the Gameboy SP was the last of the Nintendium(also commonly referred to as Tetrisium in Russia) stockpile that Nintendo had access to, and even it was limited in the amounts used to protect it. So no more indestructible handhelds anymore. Although it appears they've created a slightly lesser synthetic after developing the 2DS.
(my original Gameboy was run over by my dad's truck in '92. It still worked, and STILL works to this day).