The Mossland Monster is a monster native to New Thundera, it is a hundred feet tall and is capable of regenerating lost limbs. It can cause the rapid growth of moss to paralyze people. Snarfer and Bengali assumed it was a strange mutation caused by the tremendous pressure during Thundera's reformation. It was ultimatly defeated by one of the Thunderian Stone Giant's that stand guard at the entrance of the thunderian Cats Lair using the Sword of Omens.