C00lkidd is solid red, with a grotesque, fleshy body. The words "team c00lkidd join today!", an advertisement for his hacker group, are pasted across his torso and arms. Many of his bones are visible through his skin, including his ribs, vertebrae, shoulder blades, knees, and pelvis. He has beady black eyes and a wide smile seemingly carved into his face. The kid also has a light blueish bandana that his adoptive dad gave him, and a ripped dark red shirt that he had as a kid since five years old.

He killed another after another, laughing as if it's just a simple game. His voice glitching as he continued laughing.

“ Haha! You're so boorring!! Lets play! ”