Well...
The technicals of the game are well done, which is really the reason for the seven. The technicals, such as the graphics, menus, controls, etc. They all work how they are suppose to and look good for the type of game.
My only complaint is that, like everyone else, I found the game difficult if it was on anything besides "easy". Perhaps the castle should be spaces out more so that you have a chance to change the direction of a bob after it is first pushed on way or another. Because with a few rare exceptions it is impossible to intercept a bmb after the initial push one way or another.
The game play itself is lacking but like I said the technical ability required to make the game was good.