Bonus | How to unlock
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| - Beat 4 challenges in Challenge Mode
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- Contra 4 DS Promotional Comics
| - Beat 32 challenges in Challenge Mode
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| - Beat 24 challenges in challenge mode
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- Extras Museum and Sound Gallory
| - Beat 40 challenges in Challenge Mode
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| - Beat 36 challenges in Challenge Mode
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| - Beat 20 challenges in challenge mode
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- Nobuya Nakazato Interview
| - Beat 16 challenges in challenge mode
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| - Beat 12 challenges in Challenge Mode
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| - Beat 28 challenges in Challenge Mode
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| - Beat 8 challenges in Challenge Mode
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