Bytan

The Bytan is a spherical creature with a large eye. It is encountered in the Subspace Emissary mode in Super Smash Bros. Brawl. If undisturbed, the Bytan will start multiplying and become much more difficult to avoid. There are also large Bytans that are much stronger than the normal smaller ones. It is identical to a character from the old Game Boy accessory, the Game Boy Camera.