I loved the art, it reminds me of some Atari games. The lighting in this game must've been tricky to implement, but it gave a really nice effect, with a some more attention it could turn out pretty good! I managed to fall out of the map when entering the game (behind the entrance gate), and got stuck with the clown where he couldn't kill me but I also couldn't progress past him. Other than that, I liked the variety with enemies, and the fact that they each had a mechanic to work with.
Good job!