Disaster Neko

Fury Cats are evil versions of kittens and Oyaneko that appear as enemies while Fury Bowser is active in Bowser's Fury. They are black with purple eyes and ears, have large teeth, have spiked tails and fur on their heads and backs, and have a purple aura emanating from them. Oyaneko turn into larger Fury Cats than kittens do. When Fury Bowser appears, all kittens and Oyaneko on Lake Lapcat turn into Fury Cats and chase after Mario if he is nearby, damaging him if they make contact. If Mario is holding a kitten when Fury Bowser wakes up, then he will take damage and drop it; if a kitten is riding Plessie when Fury Bowser wakes up, then it will teleport back to its original location. When Fury Bowser leaves, all Fury Cats turn back into their original forms.

Fury Cats are virtually invincible, though hitting them with fireballs or boomerangs knocks them a short distance away and stuns them for a moment. Attacking them as Cat Mario and Bowser Jr. hitting them with his Magic Paintbrush can also stun them. Fury Cats that come into contact with water, lava, Invincible Mario or Lucky Cat Mario vanish and reappear in their original locations as kittens or Oyaneko when Fury Bowser returns to his inactive state.