FLUDD

From Mario - Wiki on Neoseeker

Overview

F.L.U.D.D, which stands for Flash Liquidizer Ultra Dousing Device, is Mario's partner in 'crime' in Super Mario Sunshine. Both of them are blamed for the graffiti that shows up on the island, so you're forced to clean up the mess or... well, clean up the mess!

Nozzles

In Super Mario Sunshine, F.L.U.D.D is able to equip nozzles. There are different ones.

Squirt Nozzle – This nozzle is the basic one, which lets Mario shoot water at enemies.
Hover Nozzle – This nozzle lets Mario hover in the air for a short time.
Rocket Nozzle – This nozzle lets Mario shoot up high into the air.
Turbo Nozzle – This nozzle lets Mario run at an extremely fast speed on land or swim at an extremely fast speed in water or under the water.