mario returns:mario returns to SMW
he is a playable charecter. in a demo of the game, Luigi and waluigi were playable but now only Mario, nim-nom, and a guy named NOWSER were the only playable guys.
nim-nom land series.
in nim-nom land, there is clues all around his theme park, and you need to find ALL of the clues to win the game and find out who's trying to destroy Nim-nom land.
personality
nim-nom is mario's 2 year old brother who is scared of EVERY THING!
he likes unicorn's though.