Your graphic has a very nice aesthetic to it, I can tell you spent some time on that. Sound wise, I like the music you have in the game. The main menu feels a little quiet and I am currently kind of guessing when the cats might go down because I am not sure if I have hit them or not. Maybe a sound when buttons are pressed and when egg successfully hits a cat would help?
I'm going to have to come back and have another go, I can't seem to get pass level 2 as I am such a terrible shot. :/