Well, you were not exaggerating; It IS very difficult.
Especially if you don't have good reflexes or good synchronization.
I like the 3D effect you achieved, but the music depresses me a bit.
The gameplay responds quite well and I will not deny that the game is very exciting in its own way.
Very good game, but prepare to receive several low ratings from rage quiters... Ops! I just said it.
Sorry for my bad English.