Stapy is typically a calm and friendly contestant. He can get angry; however, this is usually caused by his best friend, Foldy, getting harmed by someone. He prefers to sit back in challenges, but if he is asked to help with a challenge or he sees an opportunity to help, he will try to take it. He also has a tendency to sass others, as shown when he is talking to Fries in "Questions Answered" and when he is teasing Liy in "Get to the Top in 500 Steps".