Yoofoe

Yoofoe appeared in 2017 video game called Super Mario Odyssey. The Yoofoe, also spelled Yoo-foe, is a miniboss that debuts in Super Mario Odyssey. Its name is a pun on the words "UFO" and "foe".

The Yoofoe resembles a flying saucer UFO and a top hat. It has a purple Ground Pound symbol on its head followed by an inward facing black ring along the midsection of the enemy with a menacing red eye in the front of that black ring. The bottom section consists of a silver-colored dome-like structure. This enemy makes three appearances in the game: one in the Wooded Kingdom, another in Bowser's Kingdom and the last in the Darker Side. Upon defeat, a short cut scene plays with the Yoofoe spinning out of control and exploding. Mario is then rewarded one Power Moon, with the exception being the Darker Side in which a Life-Up Heart is rewarded instead. The Yoofoe is an alien invader, as suggested by the titles of the Power Moons received from it ("Invader in the Sky Garden" and "Invader in Bowser's Castle").