Spiraling Joustmite

The Spiraling Joustmite is a mini-boss from Pikmin: Spark. It gets its name from the large spiral-shaped shell that adorns its front. One that has a cyan shell with green splotches on it is found in Cavern of Cobwebs, one with a tan shell with orange splotches on it is found in Chilling Frontier, and one with a red shell with black splotches on it is found in Rust Labyrinth. The other most noticeable part of the Spiraling Joustmite is that instead of a proboscis that extends like a harpoon, the proboscis of this species instead spins like a drill to bore into prey. It bores into prey by charging into the prey at high speeds with no disregard for its own safety. Unfortunately for it, if it rams into a wall it will become vulnerable to predators such as Pikmin attacking its backside, though they still need to be careful as the shock from the ramming attack causes rocks to fall from above to crush Pikmin so using Rock Pikmin would be recommended to better ignore the falling debris.

They always drop the Brimstone Backscratcher which is valued at

Ultra-Spicy Differences
When it rams into a wall rather than become stunned it will dig into the wall and dig out another part of the arena before hitting another wall to become stunned, the amount of times it digs into the wall will rise when its health becomes lower.

Trivia

 * The Brimstone Backscrathcher is an old rusty.