Redefines the on-rail experience
It's probably been said in various reviews but Dead Space: Extraction really does redefine what an on-rails shooter is. On-rails it may be, but Extraction allows an unprecedented amount of control in the game:
1) The game occasionally allows you to stop, take control of the camera and pick up items.
2) The boss battles are amazingly interactive in nature -- instead of just standing there and shooting, the game has you use the gravity gun to pick up objects and perform certain actions to complete the level.
3) In some levels, you need to shake the wiimote to activate your glow worm light stick, making these sequences extremely intense.
Overall, an excellent game well worth the money. The story should also be interesting to Dead Space fans as it fills in a lot of the backstory before the original game.