Level passwords:

01 - BBBB
02 - CBCB
03 - DBBD
04 - FFBB
05 - GGBB
06 - HBHB
07 - JBBJ
08 - KKBB
09 - LLBB
10 - MBMB
11 - NBBN
12 - PPBB
13 - QQBB
14 - RBRB
15 - SBBS
16 - TTBB
17 - CCBB
Boss - VVBB

18 - FCCC
19 - FDBC
20 - GFBC
21 - JCCG
22 - JBCH
23 - LJCC
24 - MCKC
25 - NCCL
26 - PMCC
27 - QNCC
28 - RCPC
29 - SCCQ
30 - TRCC
31 - VSCC
32 - WCTC
33 - DBDB
34 - XBXB
Boss - FCBD

35 - GBDB
36 - JCDF
37 - KGCD
38 - LHCD
39 - MDJC
40 - NCDK
41 - PLCD
42 - QMCD
43 - RDNC
44 - SCDP
45 - TQCD
46 - VRCD
47 - WDSC
48 - XCDT
49 - GBCF
50 - HFCC
51 - JCFD
52 - JBFF
53 - KGBF
54 - LHBF
55 - MFJB
56 - NBFK
57 - PLBF
58 - QMBF
59 - RFNB
60 - SBPF