Power Moon

Appearance
Power Moon is a glowing green crescent-shaped "moon." She supposedly only has eye.

Personality
Ironically, despite containing or being made of incredible energy, Power Moon is always tired and grouchy. She rarely speaks, and when she does, she tends to display a negative outlook on almost everything. She appears to be close to Flying Strawberry, who is the only person who receives a large amount of respect from her.

Origin
Power Moons are one of the main focusing points of Super Mario Odyssey, being a collectible required to progress further into the game. They come in several different colors depending on where they are found. Power Moon in OSSU generally resembles the ones found in the Sand Kingdom.

Trivia

 * Power Moon is the only contestant without a special face who is missing one eye.