Megamouth Terratoad

The Megamouth Terratoad is the singular member of a separate subspecies of amphituber found in Pikmin Z. Although a species of amphituber, it drastically changed to suit a more terrestrial lifestyle in contrast to the typical Wollywog.

Biology
Megamouth Terratoads aren't commonly found near water as they are able to survive further inland with its drier, water-retaining skin. It is an ambush predator, and hunts in a similar fashion to an Emperor Bulblax: it buries itself and waits for unsuspecting prey to venture too close, where it launches itself from its hiding spot to snatch it in its large maw.
 * Diet: small, ground-dwelling creatures
 * Predators: unknown

Piklopedia entry

 * "The transformation of the humble terratoad into a successful predator like the megamouth terratoad proves that any animal can take any advantage in terms of niches and evolution. Though, it still has some way to go until it can get some stronger limbs to move around."

Strategy
The Megamouth Terratoad cannot be harmed as long as it is buried. To force it to expose itself, it must be fooled into doing so by either luring another enemy to it or simply approaching it. At this point, it will be vulnerable to attack. Throw Pikmin onto it, but be warned that, after it shakes Pikmin off, it will attempt to crush them with its massive body.