The game is enjoyable enough but beware:It hooks you then severely limits how often you can play by instituting an "energy" system.It requires you to use 5 energy points (10 starting in stage40) to play a single game.Unless your filthy rich ,you will be forced & inconvenienced to wait 5 minutes for a single itty bitty point.That's a wait of 25 to 50 minutes to play a single game.That is unacceptable.It's a shame because aside from the greedy underhanded tactics the game is a fun experience.