Phantamanta

Phantasma is a boss that appears in Super Mario Sunshine. It is faught during Episode 1 of the level Sirena Beach. The Hotel Delfino Manager requests Mario to fight it after it covered the entire beach in electric goop. Once Mario finishes talking with the Hotel Delfino Manager, Phantasma appears and the fight begins. Once Mario defeats the Phantasma, Hotel Delfino is restored and the Hotel Delfino Manager awards him with a Shine Sprite.

Appearance
Phantasma is a large, white, manta like creature that actually breaks apart over damage. Like it's name, it resembles a large phantom.

Battle
During the early part of the battle, Phantasma actually ingores Mario until he sprays it with water causing it to break apart. Phantasma mainly attacks by ramming into Mario and getting him to step in it's electric goop. Everytime Phantasma gets damaged and breaks apart more and more, it gets more agressive to the point where it (or rather they) seek out Mario.

Tips
The key to winning this fight is to stay on high ground. Standing on top of a tree and spraying water from there helps to avoid taking damage. If Mario runs out of water from this, he can always wait until it's safe and jump down to the water and fill up F.L.U.U.D.. Most of the trees on Sirena Beach are surrounded by a small pool of water. Once Phantasma gets agressive (meaning it's turned red), Mario should head for the beach and use the spinkler-like move to clear them out quickly.

Trivia

 * Even though Phantamsa is a boss, it uses a remixed verison of the mini-boss theme during the fight.