Absolutely gorgeous art and animation! I love the setting, and can't wait to see what I run across next. My main criticism would be to echo what the others are saying about remapping the controls. Holding Ctrl while running, pressing Space, and then hitting X at just the right moment is awkward to impossible while avoiding getting hit by an angry zombie with a projectile. Being able to use a game controller would be ideal!

EDIT: It seems game controller input is technically supported! Unfortunately, trying to use my attack caused a keyboard overlay to pop up and block the whole screen. Then, the game crashed. Which brings me to my second criticism...a save function between sessions would be great!