A nice game! The controls respond well, the art is very cute, I really enjoyed playing!
If I had to say something that could improve it would be the sound effects, not specifically their quality but their implementation. For example, when an enemy enters the cat's attack radius a glowing sound starts playing, and if the enemy leaves that radius the sound ends abruptly. This happens with all sounds, as they are musical and depend on movement. They should have some extra tail, a subtle reverb that modulates so the sounds don't completely shut down. This can be easily done in an audio middleware (I don't know if there's a way to do it directly in unity). Increasing the amount of variations for the sounds would also make the result even better.
But these really are details for future improvements. The result you showed for the jam is perfect, congratulations!