This game is really charming, and a really unique idea. I think the 3d models were good, and I liked all the silly contraptions I could use to veer kitties away. The animation of them spinning was really funny too. I had to find out what the different obstacles did through trial and error, so if you had a description of each item I think that could be a good addition to the game.
I also liked the rogue like element with the cat relics at the end of each wave.
Overall, great job