While the game itself is good I got some complains towards the stage 5 and probably 6 (haven't reached it yet):
1. They are heavy power-up dependent;
2. Can you assure that all the sequences generated by the game are possible to be passed? I tried the 5th stage numerous times and every time I was reaching a point in which I simply could not get through another wall of blocks because of lack of a proper power-up or not enough amount of time needed to dodge after cleaning the previous wall, or because of a brick blocking me the way to the red brick, which I was unable to destroy in time.
As I can see even the Author did not pass the highest stages ;-)
