|Japanese Name||ビッゲウーオ, Big Ūo|
|First Appearance||The Legendary Starfy|
|Latest Appearance||The Legendary Starfy|
Fluffy Unu (Big Ūo in Japan) is a large living cloud bubble in The Legendary Starfy who can be found in the in Skydye Heights (Stage 6-1). Its name suggests that it is actually a species of Unu. In the level he eats the door to the next area and Starfy must feed him cotton candy balls in order for him to pop and release the door from his body. He even swallowed Ruby once!
"Cotton candy, YES! Oh, no, wait... I'm not making that mistake again! You are what you eat. Can you guess what the Fluffy Unu's favorite food is?" (#053)
- The first time Starfy meets him Moe calls him Fluffy Unu but if one returns to the level Moe will instead refer to him as Goblup (the name of his undersea counterpart).