The Gameboy was the first platform that truly introduced the world to the concept of pocket-sized, mobile gaming. We can all remember spending hours (and tons of money on AA batteries) playing Kirby, Super Mario Brothers, and our other favorite games on that tiny gray-and-black screen. Carry this silver-tone Nintendo Gameboy Keychain with you, to remind you where you started from, and of course, to practice your Konami cheat codes on.