To unlock the Oni Exclusive Songs for play in Game Mode, you must pass them in Challenge Mode. If your having trouble passing them, then do the following:
Make a Custom Oni Course (Order 1-2-3)
Put any number of songs in the Course, and make them all ROULETTE
Press Circle to customize the Roulette Song and make sure that LITTLE is applied. Also, make the STEP set to CHALLENGE.
Now everytime you play the course, you will only play the challenge step courses, and they will be very easy because LITTLE takes out all 1/8th, 1/16th, and 1/32th steps.
To get the Extra Stage, Maxx Unlimited, AA your FINAL song on Heavy. Extra Stage has 1.5x speed, reverse, dark, and ''pressure'' mode enabled.
After accessing the Extra Stage by AA'ing your Final Stage on Heavy mode, pass ''MaxX Unlimeted'' by (320 bpm) on 1.5x, Reverse Scroll, Dark, Pressure Mode with a AA. This will unlock ''One More Extra Stage'', which is ''Kakumei (Revolution)'' by DJ. Taka feat. NAOKI. (168[?] bpm).
Another way of accessing ''Kakumei'' is to AAA your Final Sage on Heavy mode.
Note: You can NOT have ''Little'' mode turn on on your last stage.
First, get to the Extra Stage. If you pass it, you will unlock Maxx Unlimited.
To unlock new items/modes/songs/oni courses, you must get a set amount of points. After the credits roll, it shows you how many points to your next unlock. This is how to get points.
AAA=10 Points
AA=8 Points
A=6 Points
B=4 Points
C=3 Points
D=2 Points
E=1 Point
The Same applies for when you play in Challenge mode, but since you can only miss 4 steps per song, then the only rating you can get per song is AAA, AA, A, and E. Also, if two people are playing, you each get points respectivly.