Level         Code
--------------------
    2         BVCK
    3         FXLL
    4         GRWN
    5         WHVT
    6         BZSS
    7         CZCK
    8         DRWP
    9         BXLK
   10         HWNT
Boss1         SLVP
   11         SPZT
   12         BLZW
   13         GRWP
   14         TRVP
   15         BWLL
   16         WVLK
   17         DRZP
   18         FLVG
   19         HZST
   20         TQPY
Boss2         JXMP
   21         MQLT
   22         FRYT
   23         RQNT
   24         LQST
   25         JXRY
   26         MQND
   27         SQLL
   28         TWCK
   29         NWCK
   30         SZFT
Boss3         PQCK
   31         YVRD
   32         RQST
   33         SZLD
   34         FRZM
   35         THVN
   36         CQNT
   37         ????
   38         HQRS
   39         SWLK
   40         CHWP
Boss 4        JZWL

Levelcodes by Johannes Reindl  (bloodhound66785@aol.com)