Derwli believes himself to be the strongest robot that has ever been manufactured. In order to prove himself worthy of this far-fetched title, he participates in countless kart fighting and gladiator tournaments. Most of the time he ends up having to be repaired and rebooted after being heavily damaged or ripped apart in the matches. However, he has won a few of them. Derwli has won the Trolliversal Kart Fighting Championship on three separate occasions. Most people blame luck for his victories, but his opponents say that he isn't as weak as he looks.