Lots of fun, no problems with gameplay. Duck would be nice, but is not essential. Love the artwork. Great game. I wish there were more ways to go back to get all of the secret levels within a level.
I'd appreciate it if there were other keys than 'Z' (difficult on a QWERTZ keyboard) and "L". Other than that, nice puzzler. He'll get diabetes, though, if he can keep drinking soda for free at the vending machines.
This *could* be a nice game if it was more sensitive to mouse clicks or key press. It is so frustrating to click and instead of seeing it jump watching the dumb character walk into a mine.