Thanks to his cold body temperature, Lunk is very slow, both physically and mentally, but is fortunately not as lazy as Slumbo. Even though he is somewhat caring and sociable, he acts and reacts a bit late in some situations. However, despite his flaws, he has a never-give-up attitude that helps him in, in his case, the very long run. Sadly, he often gets bullied for his slow nature by the other Mixels, specifically Zorch, which makes him have a rather hard time expressing himself with them.