Mario & Luigi: Superstar Saga
Starfy has a cameo appearance on a movie poster read "LEGEND OF STARFY". The poster is located in the Yoshi Theater.
Super Princess Peach
Starfy was created by TOSE and appears as an enemy called a "Starfish". It describes him, "A star-shaped foe rumored to be the prince of a kingdom". This describes a bit of Starfy while he was a prince.
- During the interview with Nintendo, they were asked if Starfy was a star or starfish. They explained that he is neither.