Sea Serpent

The Sea Serpent is a snake-like creature that resides in water and delivers a tremendous bite when threatened.

=In fanon games=

In Pikmin: The Return of the Puffmin
The Sea Serpent is an enemy in Pikmin: The Return of the Puffmin that crawls around in dark places. Pikmin that are thrown on top of one will return to Olimar after hitting it once. Swarming the Sea Serpent will cause Pikmin to latch on, but they won't deal as much damage over time and will risk being eaten.