| Invincibility |
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At the code entry screen, press X(2), A, Y, A, B, A, B. |
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| Infinite ammunition |
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At the code entry screen, press A, Y(3), A, B, A, X. |
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| All future weapons |
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At the code entry screen, press A(3), Y, B(2), X, A. |
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| All past weapons |
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At the code entry screen, press B(2), Y, X, A, Y(2), X. |
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| Quadruple damage |
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At the code entry screen, press Y(4), X, A, B, X. |
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| Mission complete |
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At the code entry screen, press X(2), Y, B(2), A, X, Y. |
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| Fight TX Endoskeleton in all battles |
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At the code entry screen, press Y, X, Y, A, Y(4). |
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| 50% more health in combat with TX |
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At the code entry screen, press Y(2), X, A, B, Y, X, B. |
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| 50% more health for TX in combat |
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At the code entry screen, press X, Y, X, Y, B, A, B, A. |
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| Classic Centipede game |
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Successfully complete the game to unlock the classic Centipede game at the "Atari Games" menu. Note: If it is not unlocked as soon as you complete the game, restart your Xbox, reload your game, and recheck the "Atari Games" menu. |
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| Classic Missile Command game |
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In the vet's office on level 13, walk into the small office on the far right side. Approach the computer and press A to play the classic Missile Command game. Then, successfully complete the level to unlock the game at the "Atari Games" menu. |
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