Seriously, finishing this game means a HUGE amount of frustration on the way to the goal, but jeez, any second you add to your score is incredibly rewarding, and reach 60 seconds in the last level, after weeks of training is the greatest feeling you can ever possibly imagine. And still, you play, again and again, because each level feels like a frenetic dance with your keyboard and the game. Seriously, for this price + a little bit of sweat at the beginning, this is the best investment you can make. (sorry for my english)