Welcome to Cheatology, Gamer. You'll never know defeat again!

To select levels, enter "HKSGP" as a password, then pause the game and select "Quit".

These are level passwords:

2 NRBGB
3 RWHGK
4 NGGGC
5 BMFGT
6 LRHGF
7 NRPGD
8 RLPGJ
9 LWRGH
End JGSGF