Dead Space Cheats and Code

Dead Space Cheat: Cheat List
Using an an Xbox 360 controller, enter the following codes for the desired effect. You’ll have to map the buttons yourself if you don’t use the Xbox 360 pad. Most of these cheats can only be used once, with the exception of the refills.
X,X,Y,Y,Y - Refill you Oxygen
X,Y,Y,X,Y - Refill your Stasis and Kinesis energy
YXYXXYXXYXXY - 5 Extra Nodes
X(3), Y, X. - 1,000