Dance Dance Revolution Ultramix - Platform: XBox

All songs and challenge mode completed:
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At the main menu, select "Options", then choose the "Credits" option. At the 
credits screen, press Up(2), Down(2), Left, Right, Left, Right, B, A on 
controller four. If you entered the code correctly, you will hear a sound.

Colors (For Extreme) song:
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Play at least 100 songs to unlock the Colors (For Extreme) song. Note: They do 
not need to be cleared.

Graduistic Cyber song:
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Get an "AA" rank on any song to unlock the Graduistic Cyber song.
Healing Vision (Angelic Mix) song 
Get a rank of at least "C" on Healing Vision on all difficulty settings to 
unlock the Healing Vision (Angelic Mix) song.

Max300 song:
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Get an "AAA" rank on any song. Alternately, win Max300 on roulette and then 
clear it to unlock the Max300 song.

MGS2 Mission R song:
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Get an "A" rank on any song to unlock the MGS2 Mission R song.
Orion. 78 (Civilization Mix) song 
Play at least 300 songs. Note: They do not need to be cleared.

Paranoia Rebirth song:
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Get a rank of at least "C" on Paranoia Eternal on all difficulty settings to 
unlock the Paranoia Rebirth song.
Put Your Faith In Me (Saturday Night Mix) song 
Intentionally fail any song to unlock the Put Your Faith In Me (Saturday Night 
Mix) song.