Lakitu

Lakitu is the third boss in Super Mario Sunshine 2.

Description
Lakitu is a yellow koopa with goggles and three black hairs. He sits on top of a large cloud and throws spinies at Mario.

Showdown with the Lakitu
In the first fight against Lakitu, Mario will be facing off against him on a circular platform with four catapults located around it. Lakitu will follow Mario around and shoot spinies at him. Once he does this, Mario needs to spray the spinies into the catapults and ground pound to launch them into the lakitu. He has to do this three times to defeat him.

Lakitu Returns
In the second fight, Mario and Lakitu will be on another platform, this time with no catapults. The trick here is to notice that there is a thunderstorm going on. Lakitu will throw the spinies, which Mario has to dodge, and keep spraying water into Lakitu's Cloud. Once it gets heavy enough, Lakitu will fall to the ground and Mario can jump on him. After doing this two times, the second phase will start, where Lakitu goes inside a small cloud UFO, with an antennae sticking out the top. Normal Water will not effect the UFO. Lakitu will now be circling the platform, shooting spinies at Mario. He needs to shoot the spinies back at Lakitu, which will stick into the UFO. Once enough water soaked spinies are lodged into the UFO, a lightning bolt will strike the UFO, defeating the Lakitu.