This was a great game, Really impressive that you did this in only 4 days. For some reason undo wasn't working for me, so when I make a mistake I always have to restart to the beginning, but other than that it was awesome. Well done!
It's weird the undo didn't work... Is it possible you were doing Ctrl+Z instead of just Z for undo? I accidentally did that a couple times myself while playtesting lol.
