Pest has a blocky build, mainly having the appearance of a Roblox Guest. All of his body parts are black, except his head, which is pure white. On the front of his upper body is the 2006-2009 Roblox logo in Japanese and on the back of his torso are the words "make a free account to change how you look!" also in Japanese. "Guest" in red and Japanese is vertically placed on his left arm. He also wears the ROBLOX 'R' Baseball Cap and has 2 black spiked horns on the sides of his head.