The gameplay is simple, that's ok, but the game is very easy, so if it doesn't have extras or different kind of games/challenges, it gets boring... because it's always the same.
It would be nice if the player could get powerups. The control of the player is not good... so it's kinda frustrating to watch when the enemies are killing you and you can't move or attack.
The physics (or the anchor points) doesn't work as expected at first sight... but after playing it for a while I started passing levels in the first try.
This is a very addicting game, I played it a couple of months ago somewhere and is still very fun. I did wait about 3 minutes while it was sending the score, but it never sent it.