It's actually quite fun but just needs some touches on the movement and balancing.
For the movement, one thing is I think you should be able to come to a full stop as soon as you stop giving any input. Also, the speed of the cat and the animation doesn't really match it would be nice for the animation to actually feel like you're walking and not sliding you know?
The objects you can knock over are a good addition and would be nice to have more ways to crowd control like stun or slow the mice down by doing some cat things on the level.