Cat for the win! Simple and works ! Good job !
Few notes though :
- I managed to increase the wave counter to wave 14 by pressing space and ended up with thousands of enemies to get rid off 😅
- You may want to loop the music or have different tracks playing one after another
- The area is a bit too big in my opinion , making it smaller would create a more engaging gameplay
Oh, nice touch with cat having 9 lives 😸