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Ao Oni
Ao oni large
The Oni as it appears in the series






Ao Oni Series

Ao Oni is a purple demon from a Japanese survival horror puzzle RPG but his name means blue demon.

Ao Oni's appearance is a purplish-blue like monster with a large, distorted human face and is quite large in comparison to the main character in the game. It retains the same bemused expression and almost never changes its face until it eats you. Ao Oni is the main villain of the game in which you have to escape the mansion it lives in before it gets you. There are many versions of this game, some of which you can save your friends. However, in the latest versions, they are killed by Ao Oni and turn into clones of it. Ao Oni's name means "blue demon" in Japanese. The game gained many parodies which play similar to the regular game, but with many changes. One example of these parodies is one where the face of Ao Oni is replaced by a purple South Park face.

In M.U.G.E.N, it was created by iiotoko.



Just like in the game it originated from, touching it will cause an instant KO. It cannot be hit by any attacks, as it has no way of being hit, making it a semi-cheap character. However, it can be directly killed with cheaper characters via ReversalDef due to its single hitdef present within its coding. It will go away if you survive for long enough, just like in the games.


  • Ao Oni makes an appearence in The_None's Giygas as a minigame. You have to constantly press down to stop the closet doors from shutting but you also must not let the door open completely while you are hiding in the closet.
  • Ao Oni can actually be hit by some normal characters due to ReversalDef. Due to missing sprites, it disappears. These are usually done by counter-like attacks.


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