The Ironskinned Wollyhop is a species of amphituber that has rough, thick skin, protecting it heavily from attacks unless it is hydrated.

In fanon games

Below this point is where users place their version of the Ironskinned Wollyhop.

In Pikmin: Dual Worlds

Duality: an instance of opposition or contrast between two concepts or two aspects, a dualism. This article or section presents information pertaining to Pikmin: Dual Worlds, a fangame created by MintyMoron64.

Ironskinned Wollywog
Scientific name	Amphicaris ferrocalilingua
Family	Amphituber
Areas	Aureolin Archipelago
Carry weight	30
Max. carriers	75
Seed worth	5
Poko value	× 2
Attacks	Crushes, eats, drowns Pikmin

The Ironskinned Wollywog is an unusual amphituber in Pikmin: Dual Worlds that has strong but very cracked skin that requires a significant amount of water to keep it moist. It lives in a circular pool of water surrounded by a ring of land with a wall around it; a stream flows into the pond and a bridge allows passage over it. It attacks Pikmin by jumping out of the water to crush, returning to the water after two more jumps and splashing water everywhere, and can eat them by using its long tongue. Its arena contains live small batteries that Yellow Pikmin can link together and lead into the pool while the Ironskinned Wollywog is in it to stun it, turning it on its side and rendering its tender underside vulnerable to attack. Alternatively, it can be fed electrified Yellow Pikmin for a longer stun duration.

In phase two, the beast no longer tips to the side when stunned, necessitating destroying the clog it so closely guarded in the previous phase. Doing so drains most of the water from the pond, but enough remains so that the Ironskinned Wollywog can be electrocuted but Pikmin won't drown. To get to its underside, Yellow Pikmin must be thrown onto its back to tip it over manually. After recovering from being stunned, Ironskinned Wollywog blocks the hold the clog once covered, allowing the pool to refill.