Cheat codes- Dead Space (PS3 and Xbox)

People who like zombie, alien and scary games, you got to try this. It's so scary. If you like this game try Resident Evil series, Alone in the Dark, Doom, Left 4 Dead and other games! Rated M (Mature) for Blood and Gore, Intense Violence, and Strong Language for platforms, Windows PC, Xbox 360, and Playstation 3. Publisher: EA (Electronic Arts).
Has Dead Space scared you so much you just can't go on? While playing the game , pause then enter these codes:

Key for ps3: ▲- green triangle □- pink square

PS3

• Gain 1,000 credits-□,□,□,▲,□
• Gain 2,000 credits-□,□,□,▲,▲
• Gain 5,000 credits-□,□,□,▲,□,▲
  
• Gain 10,000 credits-□,▲,▲,▲,□,□,▲
  
• Gain five power nodes-▲,□,▲,□,□,▲,□,□,▲,□,□,▲
• Gain two power nodes-▲,□,□,□,▲
• Refill oxygen-□,□,▲,▲,▲
• Refill stasis-▲,□,▲,▲,□,▲

Xbox 360

• Gain 1,000 credits- X,X,Y,X
• Gain 2,000 credits- X,X,X,Y,Y
• Gain 5,000 credits- X,X,X,Y,X,Y
  
• Gain 10,000 credits- X,Y,Y,Y,X,X,Y
  
• Gain five power nodes- Y,X,Y,X,X,Y,X,X,Y,X,X,Y
• Gain two power nodes- Y,X,X,X,Y
• Refill oxygen- X,X,Y,Y,Y
• Refill stasis- X,Y,Y,X,Y