Some missions can't be done in the intended way because the game ist buggy. For example: The elevator in the tutorial or the un-placeable bomb in the second mission. These bugs are well known if you google for it. It could be a great game, but you should calculate in the price for the hardware you will break while playing, or you could use it as a part of an anti-agression-therapy (nothing can frustrate you if this game doesn't frustrate you).
