The art is a lot cooler than you seem to think. Sure, it's little rough, but that gives it some serious charm - hand-drawn artwork is always awesome, and it even animates in a cool way.
I personally admire you a great deal for allowing the user to set their own keys. I use a different keyboard layout than most people, and as a result have a hard time playing games that use WASD and Z and X for everything. So... thankyou very much! And sweet little game.
The .cap might be big because of the art, though. It told me it couldn't find any of the sound files. But anyway, great overall effort on the game so far. This is more than I've seen for Construct typically, so it makes me really happy.
I love that your hitpoints are coffee.