[sc979]

Base credits earned off the 1-99 difficulty scale of the song somehow.

Maybe (x^2)/125 for AAAing rounded up as a formula? Starts off slowly though.

1 credit for AAAing a difficulty 11 song (you can get a credit for AAAing Excite Bike lol)
2 credits for AAAing a difficulty 12 song (low VE)
20 credits for AAAing a difficulty 50 song (low/mid VD - first page of D2)
34 credits for AAAing a difficulty 65 song (mid C - basis of unlocking Otaku Speedvibe [Heavy])
40 credits for AAAing a difficulty 70 song (mid VC - most people complaining about the credit cap can do this I think)
45 crecits for AAAing a difficulty 75 song (high VC)
47 credits for AAAing a difficulty 76 song (low FMO)
56 credits for AAAing a difficulty 83 song (high FMO)
57 credits for AAAing a difficulty 84 song (low FGO)
73 credits for AAAing a difficulty 95 song (DP and RATO; not going to happen)

Then some percentage of that for non-AAAs, and scores under a certain amount should still be able to net 0 credits instead of 1.