Guest 665 or "Blue" is the last guest alive in the Roblox Universe. He has a blue spiky side swipe hair, blue eyes, wearing a blue shirt in his dark grey hoodie, black jeans and blue sneakers. His past personality is Joy and warmth, but now he is quiet, shy, kind and mysterious.. He was highly alert to someone who owned a ban hammer that was believe to remove a person out of existence and he would ran away and hide from anyone. Nobody knows that Guest was alive and it was still hidden to anyone.