Retro Game Cheats for Contra 4 (Nintendo DS)
Effect: start with 30 lives in the orginal game
When:
title screen
How:
press Up, Up, Down, Down, Left, Right Left, Right, Y, B
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Effect: get 10 lives in super contra
Effect: Unlockable: Nobuya Nakazato Interview
When:
During gameplay
How:
If you want to hear an interview from series producer Nobuya Nakazato, fulfill at least sixteen challenges in Challenge Mode.
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Effect: unlock challenge mode
Effect: Unlockable: Super C (NES)
When:
During gameplay
How:
To unlock the original NES Super C title, complete at least eight challenges in Challenge Mode.
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Effect: Unlockable: Probotector
When:
During gameplay
How:
To play as Probotector, clear at least twelve challenges in Challenge Mode.
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Effect: Unlockable: Lucia
When:
During gameplay
How:
To unlock the character Lucia, complete twenty challenges in Challenge Mode.
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Effect: Unlockable: Bonus Artwork & Content
When:
During gameplay
How:
To unlock bonus artwork and other content to be seen at the Contra Museum, complete all 40 challenges in Challenge Mode.
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Effect: Upgrade weapons fully on normal or hard
When:
pause screen
How:
press Up, Up, Down, Down, Left, Right Left, Right, B, A, Start
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Effect: Unlockable: Contra (NES)
When:
During gameplay
How:
To unlock the original NES Contra title, complete at least four challenges in Challenge Mode.
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