I think the game is overpriced considering how incredibly buggy it is. I know the bugs aren't GOG's fault, but it should be priced for value/convenience. I think the story/funk/dialog of the game made it pretty interesting for its time, and it's fun to experience that for a little bit. After awhile though, the bugs make the game tedious, especially since you have to repeat some pretty boring missions as a result. Having to repeat a mission because you screwed up is one thing, but then piling on that having to successfully do a mission over and over because of bugs is annoying.
