Scuba Gator

From the Super Mario Wiki

A Scuba Gator is an enemy in the game Wario Land 4. They resemble green alligators with orange scuba tanks and snorkeling masks. These alligator enemies reside in the water and are very aggressive. They will attack Wario as soon as they see him. Scuba Gators usually travel in packs of two or more. Wario is unable to defeat these enemies. Scuba Gators appeared in the Monsoon Jungle.