It's an great concept, but as other have said, the game basically cheats to get to the predetermined outcome of you losing. The moment you start to see it, everything becomes a lot less enjoyable.
It also undermines the entire premise and story of the game. The hero is not getting better, he is not changing to fit your tactics. He is simply running through lives until he gets to one that triggers the next phase, until he eventually gets to the one that lets him figure out which exact pixel of the screen he can stand on.
"This game is about the capacity for change" -- The author.
It really isn't. Ironically, the only reason this game works is because everything is set on stone.