Wow, really good game, you've done so well, it feels polished enough, each level was more or less interesting with some being so cool, I loved the night levels, the shadows helped a lot, the art-style is simple and great. I encountered a small bug that got me stuck in the end screen of level 5, but it was fine since I could just refresh the page and continue from where I left of, but besides that, it was a phenomenal game, amazing stuff.
A big thumbs up from me!