Minus

Minus was one of the main villains in the movie The Adventures of Sharkboy and Lavagirl.

Origin
Linus, Minus's real name, was a bully to the main character, Max. They were classmates and Linus sought to torment Max in school after Max gave a school report on two imaginary characters he invented, "Sharkboy", and "Lavagirl". Linus thought this was dorky and ridiculed Max for believing that something imaginary was real.

Goals and Ambitions
Minus sought to take over Planet Drool, a dream world that Max invented, and ruin all the dreams that Max thought up.

Redemption
After Max saves Minus from falling off a tower, the two become friends, and Minus helps Max restore Planet Drool to its original state.