Wheeler

Wheeler/SAL (Super Animal Learning) is an experimental chimpanzee that has the ability to duel. He escaped the facility in which he was being held, but was set free after having dueled against Jaden Yuki (Judai Yuki). He returns during the second year to remind Jaden of his time spent at Duel Academy.

In the English version, "Wheeler" is possibly named after Joey Wheeler (Katsuya Jonouchi in the English manga and Japanese versions), who Seto Kaiba titles "a dueling monkey" during the second series of the original Yu-Gi-Oh! anime. His original name is pronounced "Saru," the Japanese word for "monkey."

Dueling Cards
Wheeler uses a Monkey Deck.

Monster Cards

 * Berserk Gorilla
 * Acrobat Monkey

Spell Cards

 * Wild Nature's Release

Trap Cards

 * DNA Surgery