As a human, Marugori was depicted as a buff young man, with a large torso and muscular arms. He had sharp eyes and a shaved head. He wore a simple tank top and plain jeans. These clothes were ripped off when he transformed into a Mysterious Being. When transforming, his veins were popping, muscles expanding and his size grew incredibly. As a giant, he resembled a giant human body without skin, steaming, with a white, bone-like armor covering his enormous muscles.