CATNAPPED! THE MOVIE

Ever wonder where your cat runs off to when you let them out? There is a place, a whole world that belongs only to the cats. A hidden world known as Banipal Witt where the sun changes people into cats and dogs into monsters. Travel there as two young children set off on a fanciful trip with a desperate group of feline engineers to save Banipal Witt from the evil sorceror cat Bubulina, whose very touch turns any living thing into a balloon! With this talent and the monster dog, Papdoll, Bubulina hopes to control all of Banipal Witt and only Toriyasu, Papdoll's former owner, has a chance of returning Papadoll back to normal. But can they rescue Papadoll and defeat Bubulina before the sun rises? (Source: Geneon Entertainment) — Description from AniList community (anilist.co).