This $1 Garage Sale Game Cartridge Was An Exceptionally Awesome Find (9 Pics)

At a garage sale he found this old Game Boy cartridge for $1, and since he likes retro video game stuff, he bought it to see what was on it. 

The original label was all torn, and a mysterious "rare" was written on it.

Loading it up!

Turning it on!

Starting up!


What is? How did they? ..WTF!?