Cool Croc Twins

Code:
Code World Level
AAAA   1   1
BLOY   2   6
ZARP   4  11
MILP   6 16
CREG   7 21
SMAT   9 26
PLIM 11 31
TRUB 12 36
DRIT 14 41
HISP 16 46
FROS 17 51
QUOL 19 56