This was fun! I liked that I could move and shoot in all 4 directions. I used a strategy of starting each wave by shooting to the right, and then when the wave got close to me I walked forwards and around them and shot upwards. I also liked that as it got to the later waves, the shooting speed increased, and it felt good being able to shoot so quickly. The ending was also funny! Selling that hat might be a good place to start :)