The following passwords are for the "easy" settings.

Level    Password
17       cejhlflbdx 
18       ijjlnlbcdv
19       ojlnhceddu
20       jnnhcmnedc
21       nnhcajnfdl
22       nchcmknngdr
23       lcaollflds
24       cakjmfhjdl
25       ijhmflckdu
26       njmflcaldv
28       jonhcinmdt
29       mnhceknndp
30       flcmjlmodr

The following passwords are for the "tricky" settings.

Level    Password
1       lcaolmfpdl
2       ciolmflqdu
3       cajjldmbev
4       ijhldmccem
5       nhldmeden
6       hldmcioeet
7       llicajlfep
8       licmjnlgeo
9       icennllhel 
10       cmnnnliiew   
11       cajjolijeu
14       hmdmcinmel
15       mdmcajlneu
16       lmbijnooey
18       cinlmdmqet
19       cakhnnibfn
20       ijjlfmccfr
21       nhlfmccedfq
22       itlfmcioefw
23       nnicejnffk

Level  Password
20     JNNHCMNEDO
21     LFLCAJLFDL
22     NHCIKLLGDJ
23     LCANLLFHDR
24     CINLNNHIDQ
25     CEKHMNHJDU
26     IJHONLBKDO
27     NJMFLCALDU
28     JOFHCINMDL
30     FLCIKLMODC