3-Ball is short tempered and loud. He often has unnecessary outbursts with people and usually screams a lot of his words. He is grouchy and is almost never seen smiling. He can be murderous and violent at times, as when Team Room 2 is being chased by a Wire, his first instinct is to have Notebook chuck him at it, and it kills the Wire as 3-Ball smiles. When Notebook is stating that what they just did was wrong, 3-Ball makes it pretty clear that he doesn't care, even shouting "I DON'T CARE! We die all the time!", showing that he has no morals for killing others, especially if they're objects.