: Added after clearing the "Moon" stage in Empire of Cats, featuring units like Mighty Kat-A-Pult and Mighty Bomburr .

: Unlocks Curling Cat and the enemy Daboo of the Dead . Realm of Carnage : Unlocks Express Cat and the enemy Hannya .

: This major endgame feature is now available once you clear the Empire of Cats - Moon stage. Reaching Floor 10 unlocks a variety of new Invasion Stages .