Here are the codes:

Level:  Code:
2       GZIARZLIWHX
3       MKIAUZLXXSJ
4       KPIANBSXXSF
5       QAIADAMYZSL
6       QFIAVBSYXSH
7       UQHAZBSJTAT
8       SVHARDYJTAP
9       SHKAFZFMWMJ

     If  you  can't  be  bothered  typing  in  all the above codes try
hitting [>] to move up a level and [<] to move down a level.