Dance Dance Revolution Extreme Cheat Codes for Playstation 2

Dance Dance Revolution:
Play every song, then play about another twenty songs. You will then see it on your song list.

Paranoia Survivor:
Complete Paranoia Brothers Oni course. Alternately, complete any of the songs in the course under Heavy mode.

The Legend Of MAX:
Pass The Legend Of MAX as your extra stage.

The Legend Of MAX:
Play every song. Alternately, successfully complete the Extra stage.

Tomorrow Perfume:
Get an "AA" rank or greater.

Trip Machine survivor:
Get an "A" or better rank on Trip Machine Survivor under Heavy mode as as semi-final stage.

Try 2 Luv. U:
Get twenty "A" or greater ranks (except in beginner mode). Alternately, complete Lesson mode.

U1 (dancer):
Play MAX. (period) as player two.

Un Deux Trois:
Get fifty "A" or greater ranks (except in beginner mode).

Xenon:
Get an "A" or greater rank on V (for Extreme) challenge.

Additional Dancers option:
Complete every Nonstop course

Angel's Oni course:
Complete ten Oni courses

Brand New Songs Oni course:
Complete the Brand New Songs Nonstop course.

Brand New Songs Nonstop course:
Complete A Stupid Barber.

Darkness Oni course:
Complete any song with the "dark" setting.

From GF & DM Oni course:
Receive an "A" or better on Mikenko Rock in Heavy mode.

From IIDX Oni course:
Complete one Oni course.

IIDX Boss Oni course:
Complete V (for EXTREME) challenge with an "A" or greater rank.

Legend Road Oni course:
Pass True Demon Road Oni course

Legendary Road Oni Course:
Play every Max song. Max songs do not have to be beaten; just played.

Max Quartet Nonstop course:
Pass MAX. (period) as your EXTRA STAGE

Rap 5 Oni course:
Get an "A" or greater rank on Daikenkai challenge.

Rebellion of Oni (Oni course):
Master Light, Standard, or Heavy mode.

Remix Nonstop course:
Complete the Standard Nonstop course.

RevenG and TaQ Oni course:
Complete five Oni courses.