This article is about the Yoshi's Island
boss. For information about the recurring species of large Boos, see Big Boo
Bigger Boo is the boss of World 2-4, the third castle in Super Mario World 2: Yoshi's Island. He is found in World 2's fort. He started as a regular Boo, until Kamek enhanced him with magic, making him grow to colossal proportions. Despite his great size, Bigger Boo was just as shy as any other Boo, and would cover his face if looked at. However, he also turned intangible when looked at, meaning he could not be attacked; obviously, this also meant that he could not damage the player. To defeat him, the Yellow Yoshi had to turn away and ricochet eggs off a wall, hitting Bigger Boo when he was visible. Bigger Boo inflated with each egg that hit him. Also, Fangs floated all over the room, which Yoshi could eat for eggs. After enough eggs hit him, Bigger Boo exploded and was never heard from again.
 Names in Other Languages
||Same name as the Boo species in German
|Xūxū is an onomatopoeia for hush-hush, móguǐ means monster or demon