[Aug 23rd 2005] [related games & forum threads]
Press B, Y, A(2) at the code entry screen. Note: Leave the last four code positions blank.
[Aug 23rd 2005]
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Press B(2), X(3), B, A, Y at the code entry screen.
[Aug 23rd 2005]
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Press A, Y, A, Y at the code entry screen. Note: Leave the last four code positions blank.
[Aug 23rd 2005]
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Press B, X(3), B, A, Y, A at the code entry screen.
[Aug 23rd 2005]
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Press B(3), A, X, Y, X, Y at the code entry screen.
[Aug 23rd 2005]
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Press A(3), X, B, X, B(2) at the code entry screen.
[Aug 23rd 2005]
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Press Y, B, A, B, A, X, Y, X at the code entry screen.
Jonny F.
[Aug 23rd 2005]
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Press B(3), X, B, Y, B(2) at the code entry screen.
[Aug 23rd 2005]
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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.
[Aug 23rd 2005]
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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.
[Aug 23rd 2005]
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Press Y, X, B(2), A(2), B, X at the code entry screen.
[Aug 23rd 2005]
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Press X, Y(2), X, B, A(2), B at the code entry screen.
[Aug 23rd 2005]
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Press X, B, X, A(2), Y, X(2) at the code entry screen.
[Aug 23rd 2005]
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Press X, A, Y(3), A, X, B at the code entry screen.
[Aug 23rd 2005]
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Press B(3), X, B, A, Y, A at the code entry screen.
[Aug 23rd 2005]
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