This old classic Game Boy used to have a life filled with Tetris and Super Mario Land. But it's been replaced with newer and better handhelds. That doesn't mean it's outlived its usefulness, however. It's just turned into an 80GB HDD.
Unfortunately, the screen is a bit misleading - it's a sticker. If this thing still functioned or, better yet, played ROMs loaded onto the hard drive, it would be the ultimate. But hey, as-is it ain't that bad.