The ONLY Problem that I have is that when it says 'SUPERB!' or 'AWESOME!' or something is that you can't sit back in the seat of the schoolbus and hold the gas in, as the gas consumption doesn't change, contrary to the zombie gut physics.
Somehow this reminds me of Touhou project... the difficulty, the beautiful shot patterns... epic music... but this game has something that Touhou has not. Cats.