Admittedly, I’ve not managed to finish this one, but it’s kept me playing for at least two or three hours now (I’ve lost count, ok?) The object of Compulse is simply to get the ball to the exit. You have at your assistance some blocks that determine the direction that the ball is going, but even trying to finish the levels within the “Pro” number of tiles is quite a challenge in the higher levels. I’m currently stuck on level 19…if you figure it out (within the requisite 5 tiles!) please let me know how!