Shearfin

The Shearfin is a boss appearing in the Pikmin Resprouted Trilogy version of Pikmin 3 exclusively in New Mode, it replaces the Scornet Maestro in Twilight River.

Shearfin is the largest member of the Mandiblard family being similar in size to the Emperor Bulblax, it has an elongated body and has fin like appendages on its body giving it the shape of a shark.

Story
The three captains follow a trail the White Pikmin have been following, using their eyes they discover something buried in the dirt, the unconscious body of Louie, suddenly the Shearfin swallows his body whole and you need to slay it to get him back.

Stategy
Being very quick underground its invulnerable to any direct attack, the arena features diggable pillars which the White Pikmin can raise up. When a pillar is raised you bait the Shearfin into the pillar to stun it.

Then stunned the soft parts of its main fin gets exposed, by swarming the fin you can break it off. When the fin is broken the Shearfin gets angry and begins to rapidly flap its side fins in a attempt to glide and attempt to impale the pikmin with its extendable toungh, to defeat it once and for all you must use you pikmin to lock onto its large wing fins to temporarily crash it down and expose its weak points, after defeating that phase the boss is slain.