Geno

Geno is one of the playable characters in Super Mario RPG: Legend of the Seven Stars is a spirit who took over the body of a doll. Geno's real name is spelled as a heart, a music note, an exclamation point, and a question mark, but as it was to hard to say, he asked Mario and Mallow to call him Geno, after the doll, who was created by Gaz. Though he left the doll's body in the end, he is presumably still watching over Mushroom Kingdom. He also makes a cameo in Mario and Luigi: Superstar Saga as the host of a minigame.