Monstro is the climax antagonist of the Disney's 1940 animated movie Pinocchio. A giant whale, that can swallow large ships, Monstro appears as a minor player in the third part of Disney vs. Non-Disney Villains War and in Disney Villains War, while appear as a major player in Disney Heroes vs. Villains War and in Heroes vs. Villains War.
Disney Vs Non Disney Villains War - Part Three
Awakened by the Evil Manta, Monstro sets out to destroy the naval fleet of Admiral Zhao. Upon meeting them, Monstro dives into the water of the ocean, resulting in creating waves that nearly washes up some Fire Nation's troops. Just as he charges at Zhao's ship, the admiral fires at the beast, with fire canon balls, knocking the whale to the sea. However, an enraged Mostro makes his way to the surface and prepares to strike a final blow at his enemy. However, Zhao lures Monstro into a cavern, eventually, killing the whale, as Monstro crashes in the opening of the cavern, although he manages to destroy Zhao's ship.
Disney Villains War
In this war, Monstro serves as the monster form of Undertow, a minion of Morgana. After his transformation, Undertow attacks the Ice Titan, sent by Hades, eventually stunning the giant. However, Hades grabs the Trident from Morgana's hands and uses it to blast the beast, taking him out from the battle.