Successfully complete the game on any difficulty to unlock Ten Power Nodes, 50,000 credits, Level 6 Military suit schematic, Impossible difficulty, and the back story log entries. Pause the game and press X, Y(3), X(2), Y.

Pause the game and press Y, X, Y, X(2), Y, X(2), Y, X(2), Y. Also, codes that have multiple tiers (for example, credits) only take effect when activated in order (lowest to highest). Note: Some codes may only be enabled once per game. Press Start to resume the game with the code(s) activated. If you entered the code correctly, you will hear a sound. Pause the game, and enter one of the following codes.