The Guide to SuperNOVA's Extra Stages
Ok, to play Fascination MAXX......
Select either All Music or Difficult mode.
Play your first 2 songs as normal.
Now on your third stage select the song on EXPERT. Any foot rating will give you an AA, so if it's either a 1,2,3,4,5,6,7,8,9 or a 10 and you AA it, you'll get Fascination MAXX.
The mods for Fascination MAXX are 1.5x, Reverse and No Recover.
To play Healing-D-Vision......
Select Easy or Medium mode.
Play your first 2 songs as normal.
Now on your third stage select the song on Expert. There will probably be no songs higher than 8, so it should be releatively easy. AA it and Healing-D-Vision pops up.
The mods are 1.5x, Reverse and No Recover.
To get CHAOS.....
Get any EXTRA STAGE.
If your Extra Stage was Fascination MAXX, then AA it to advance.
If your Extra Stage was Healing-D-Vision, then A it to advance.
CHAOS should now appear.
The only mod for CHAOS is Sudden Death. One Good or below will destroy you.
Clearing this song with any grade does not give any special rewards that anybody knows of yet.....
Hope this helped
BTW, I always use Can't Stop Falling In Love (Super Euro Mix) to get myself ES. It's easy on 1.5x and has no Freeze Arrows so no pad misses
EDIT: In your poll you forgot all about Healing-D-Vision!