Wart
From Zelda Dungeon Wiki
Wart on the ceiling of the mini-boss room in the Great Bay Temple.
Wart is a mini-boss in the Great Bay Temple in Majora's Mask, He also appears in the Secret Shrine.
Description
Wart appears to be a giant eye-ball of a land-sea creature. Wart's eye has bloodshot around it and the eye lid is a green mossy substance. Wart is also covered in pink bubbles that you must destroy in-game to actually be able to damage him. It is also very large, about three times the height of Link.