Stu's body is of a deformed RED Heavy, being slimmer than the average one, and always possesses bizarre expressions on his face (often his signature smile). He wears a pair of Summer Shades, and he is sometimes seen smoking a cigarette. Pidface is completely random in both actions and words. Weird and unpredictable, his actions and words are typically nonsensical. Wherever he goes, he is accompanied by strange sound effects. He appears to be a friend of Ninjineer's, as he is sometimes seen hanging out with him and assisting him. However, because he is completely insane and unpredictable, he's likely to do things that are destructive to him and his friends, often with a smile on his face.