Dance Dance Revolution Extreme
The Legend Of MAX:
Play every song. Alternately, successfully complete the Extra stage.
Paranoia Survivor MAX:
Get an "AA" rank on every song in the Paranoia Bros. Max 2 Oni course.
Note: Sometimes you might see it on your song list, but you cannot play it on
challenge. You will only see it a few times.
Dance Dance Revolution:
Play every song, then play about another twenty songs. You will then see it on
your song list.
Play every song. Alternately, complete Legendary Road Oni course. You will
then see it an Extra Stage.
Legendary Road Oni Course:
Play every Max song. Max songs do not have to be beaten; just played.