Unagi the Eel

Unagi the Eel is an enemy that appears in Jolly Roger Bay. It is a long maroon eel that is invulnerable to damage. Coming into contact with Unagi will deal damage to Mario. In the first mission of Jolly Roger Bay, it resides in the entrance of the sunken ship, later inhabiting an empty tunnel in future missions. In the mission "Can the eel come out to play?", a star is connected to the tail of the Unagi and must be grabbed.

Unagi Caves
Main Article: Unagi Caves

Alternative Bosses
Main Article: Alternative Bosses