I love tower defence! For me, shooting the arrows had a satisfying feeling. I liked how they bounced off the castle based on the impact. I had trouble placing the towers. I was able to place two of them, but I'm not quite sure how I did it. Also, I see that you wanted to have the player circle the tower, which I think is a good choice. I found that when circling, pressing A and D would flip the player out of the circling position. I'm sure that is just something you'd fix if you had more time. Great job with the game!