Solid game. The amount of quality visuals were quite impressive, in addition to looking just lovely, and the gameplay was enjoyable. The puzzles were neat and simple, although I do admit I had trouble counting the pumpkins. I really like how the spike trees could be triggered by the gun, but the reloading animation prevents you from ducking, forcing you to use another strategy; very clever. All in all, good game. I enjoyed myself. (I also laughed quite a bit the first time I got exploded, and when getting the gun)
I would recommend making duck [S] instead of [F], seeing as it's more intuitive and so that it's easier for the player to reach. I had to change my hand position every time I wanted to duck. Also, I feel that the 'choose your direction' thing at the end of each room was unnecessary; I always just picked East and got there just fine, so it feels as if it doesn't do anything.