Level passwords:

1	BGNR 
2	CLMB 
3	KVNF 
4	WKGA 
5	DFVJ 
6	NGPS 
7	WMCV 
8	XNAD 
9	HPJQ 
10	QHDG 
11	WFXM 
12	MNTL 
13	QGAV 
14	LXHK 
15	HGCD 
16	CNXK 
17	LKKV 
18	PVHS 
19	JAST 
End	WMBT   
 

Thanks to Revolution readers gir2211 and razorz_edge!