Catty & Batty is progressing rather well! There are thirty levels now and the game can technically be played from beginning to end. There are still a few details left to add, in addition to (of course) sounds and music, but this is a pretty good milestone to have. The game definitely exists now and it feels good, a definitive point of no return.
I'm not sure when it will be finished, but my hope is that I can still complete it this year. Fingers crossed!
You can purchase it on itch.io or become a patron to get early access, if you want to watch it grow.