The sprites are stylish and creative.
Awesome screen shaking animation, probably the best one I've ever seen in any class projects. That slight amount of vertical movement really added a lot of impact to it.
While having sound would definitely make it better, I totally understand how it won't be unnoticed by the creator so it had to be an intentional trade off and I can respect that.
I would personally like a bit more trees as the game would be too easy if you are not making them magnetic like the orignal game does.