The game is great, or at least it would be on another system. It seems like for the gamecube version they had to remove alot of features. For example on the Displace mission you are supposed to be able to make opaque windows transparent, but you can't, nothing happens when you change them. The enemies can see you, but you can't see them. It would be such a big deal but one of the objectives requires that you be able to change the windows. This is just one of several things that seemed glitched. In some cases you can see enemy shadows on the other side of a wall. Also certain events never seem to trigger properly. The game is fun if you can get past these iritations, but some of them hinder actual game play.