I played your game until the 2nd item. It was fun to play but I think you should explain how to use different fonctions. (I took few minutes to understand that I only had to do a right-click). And it's also frustrating to have to start again the level when I've only be hit 1 time. Why didn't you put checkpoints ?
However, it was very interesting, even if I only played the first part.
Nice job ^^