Fun and challenging.
Great game! And for those critizicing it, I have some advice:
1) If you're complaining about it being hard, you must have the eye-to-hand coordination of a zombie. Also, don't rate low on the basis that you can't beat the game, that's called being a jerk.
2) For those complaining the controls are "touchy", PRESS THE KEY SOFTLY.
3) If the game does not load, check your flash version before giving a zero review. If people are commenting the game itself, it means it works, doesn't it?
Well, I think that's it. Thank you for making a good game.