Geno did not originate from fanon, and more information can be found on their respective wiki(s). You may read more about it on the following wiki(s):

Mario, I found a strange puppet on a galaxy, and lend to know you ...
Rosalina, in Super Mario Galaxy 3

Geno, the doll possessed by a star being.
Full Name ♥♪!?
Gender Male
Location Star Road
Mario, Princess Peach, Mallow.
First Appearance Super Mario RPG: Legend of the Seven Stars (1996)

Geno (whose real name being ♥♪!?) is a puppet ally of Mario, who first appeared in Super Mario RPG: Legend of the Seven Stars. In actuality, he is a star being from Star Road, who possessed the body of a doll. Despite only making a major appearance in Super Mario RPG: Legend of the Seven Stars, he has a rather large fanbase.


Super Mario Galaxy 3

Geno appears in Super Mario Galaxy 3. He is a character discovered by Rosalina in a unknown galaxy.

Woofbot and Meowbot: Robots to the Rescue

Geno makes a cameo in Toy Shop on the dolls shelf.

Super Mario Galaxy 3: Shining Stars

Geno will reappear in this game in the Forest Factory Galaxy. He gives Mario a Spring Mushroom to get past the gears. Geno (along with Mallow) is seen in the game's ending cutscene as one of the people watching the stars.


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