Twister practices all the time to be the most powerful Psymonster in the Psymonster World. He lives for speed and mighty powers, and when he is around, any and every surface becomes his own place. His spinning ability is his prize possession, and he always makes sure to be extremely powerful and enthusiastic, even when he gets totally incompetent and infirm himself. Twister is extremely competitive and ambitious, so he can't stand to see any Psymonsters do something better or faster than he does. His challenge isn't just limited to other Psymonsters – he will try to out-spin tornadoes and out-fly Psymonsters taking a flight, just to prove that he can. He hasn't beaten them yet, but he is sure he will someday.
He is a flying gray top with yellow eyes, green arms and one tiny leg, yellow eyes, a navy mouth with a blue tongue, a pink light on top of his head, and an orange beard.
- Twister is the only Psymonster with one leg.