Really really nice! I'm amazed you got this put together in just 2 days time. Oddly, my favourite part was the tutorial ; it was fun and got me really excited while showing the ropes, and had me well-prepared for the main game.
At some points the game was slowing down noticably, but I was trying it out on my laptop (A Surface Pro), so probably that is why :P
Well done! I enjoyed it!