Dead Space 2 Cheats :
Secret - Free Health
You can use the shop and the work bench to get easy health boosts. Each time you don a suit for the first time -- after buying it in the shop -- your health is filled to maximum. This only works the first time you put on each suit, but with the extra downloadable suits you can do this several times throughout the game.
Alternately, once you can purchase the Respec ability (5000 Credits), you can strip the Power Nodes from the Rig and replace them for full health -- this costs less than, say, buying a large health pack.
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