Cyborg Kuro-chan (1999)

Original title: サイボーグクロちゃん

Kuro is just an ordinary cat who only wants to protect his owners who are an old couple that can't fend for themselves. One day while on a date with his girlfriend Pooly who is a dog, he is kidnapped by an evil scientist and turned into a robot. Kuro somehow removes the chip that controlled him and notices that people get scared with his new robotic appearance and that he can now talk like a human. He decides to disguise himself with the skin of a stuffed toy and to continue living as a pet.