Cats visual assets were drawn by TheGalagaShip for Simply Cats.
https://twitter.com/thegalagaship

Teddy is the cat, and he is a Very Good Boy.
https://twitter.com/thegalagaship/status/1225268984171388929

Cats fallback banners were laid out by quietly-turning.

Beanmania IIDX (loop).ogg was created by frums for Simply Cats.
https://soundcloud.com/frums