R.O.B. the Nintendo Robot

R.O.B. the Nintendo Robot (short for Robotic Operating Buddy) is a character originally intended for use as an accessory for the Nintendo Entertainment System. However, the only games he was compaitable with were Gyromite and Stack-up. He later appeared in a few Mario spin-off games, such as Mario Kart DS and Super Smash Bros. Brawl as an unlockable character.

Counterparts

 * Paxton (Thomas the Tank Engine and Friends)