Level 2 - HJRDCHMC
Level 3 - GGRSGJMC
Level 4 - FSRSMKMC
Level 5 - DQRNBBMC
Level 6 - CSRJGCMC
Level 7 - BQRDMDPC
Level 8 - TJRDQFPC
Level 9 - SGRSCQPC
Level 10 - RJRNLRPC
Level 11 - QGRNRSPC
Level 12 - PSRJCTPC

Codes thanks to GameWinners.