Hey Squidgette, well according to this FAQ (http://www.gamefaqs.com/console/ps2/file/928278/39197) it says:
B-30: ||........ UNLOCK: B-20
Song: CARTOON HEROES (Speedy Mix)
Diff.: BEG (1)
Challenge: Get 3.5 million points or more.
SECRET CHALLENGE: Get no more than 6.5 million points.
EXTRA ARROW: Measure 31, the second beat is a down arrow. The measure before
it has a down arrow on the first beat and a left-right jump on the third
beat, and the measure of it has an up arrow on the first beat, and a left-
right jump on the third beat. It's in the second "What we do is what you
wish to do" line.
Notes: Remember that these score thresholds are AFTER the bonus, so be sure to
shoot really low to get your score as low as possible.
X-07: |||....... UNLOCK: B-30 (Secret)
Song: INFINITE PRAYER
Diff.: LGT (2)
Options: Little
Challenge: Finish the song with a full Dance Meter.
Reward: This song for purchase (4000)
Dance Master Mode:
There are four types of missions:
1. Yellow Border - Normal Mission. Has standard set of requirements, for the
most part.
2. Red Border - Special Mission. Most of these are necessary to "complete"
an area and unlock another. Completing these will earn you the song or
course you played in the shop. Also, you'll get a "prize" for completing
any of these.
3. Green Border - Course Mission. You'll need to play through a series of
songs to pass the mission.
4. Blue Border - Handicap Mission.
You're required NOT to step on certain arrows for the course of this mission.
Hope that helped, if not, hoepfully someone else can help you.
I don't have Extreme 2 anymore so I can't comment much more on this.



