Mary O
Mary O
Full Name Mary O
Gender Female
Species Human
First Appearance Super Mario Maker (2015)

Mary O, known as Mashiko in Europe and Japan, is a minor character in the Super Mario series; debuting as the guide of Super Mario Maker's manual. Aside from appearing throughout the game's manual, she also provides the player tips through the game's menu.

Mary O seems to have some connection to Yamamura the pigeon and the Undodog, as they all appear together throughout the manual.


Mario Kart Hypercube

Mary O appears as a starting driver in Mario Kart Hypercube. She is a shallow-weight character.



  • "Mary O" is a deliberate pun on "Mario".

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