>>527987008
His actual mask is here >>527987168. Animated version of this cone basically confirmed it. I don't know why you fags even try to make mystery thing about it. Animated version spells you out that his mask is on his face there (on that cone).
Hat in Hi3 is just the hat. Why the fuck does he use it as one of his powers? Who knows. Nigga is also making cards into a weapon here. It's not his mask either way. It's just a dumb hat he decided to wear randomly.