The idea is very interesting, however the game play is terrible. While typing this review and still in the menu screen I was attacked and destroyed. The controls are horrible, if I try to slow my ship down I go off screen and die. I was able to damage the castle a few times, but judging from the shots, if I was to destroy the entire bottom "row" of the castle I highly doubt that I would destroy the castle and then it would float above its own wreckage. I want to like this game, but it's going to need a lot of work.