Once people stopped believing in spirits and ghosts (yokai), those magical creatures gave their powers to the kaiju Derremonkas, who rises to attack the non-believing world.
ABILITIES:
Yokai Gems: small arms can rub any of the gems on necklace to summon various yokai from folklore
Flame Breath: breathes fire from mouth
Cursed Claws: fires many curse dolls from its massive pincers, that attach to buildings