Linus/Minus is the secondary protagonist in the film and his sidekick is Mr. Electric
Linus is Max's bully who torments his imagination and steals his dream journal. Linus' name is always mistaken by Mr. Electricidad for Minus. Linus then becomes Max's friend at the end. Linus then calls himself "Mr. Positive".
Minus is the darkness who enters Max's dreamworld and he can make anything come true using Mac's journal and even using single pictures. Minus sleeps with his eyes open. Max then stops Minus by telling him to not crush other people's dreams, because they'll destroy his.