The concept is really neat and you do a good job of guiding the player through the controls. The graphics were amazing and I was enjoying them through the entire game ... show me cats and pixel art and I'm happy!!! I loved the ever-expanding heap of kitties the levels became. My main critique would be that it could use maybe one more core mechanic building on what you already had, but for your first game I understand wanting to take that slow. Awesome job!