Here are some cheats and tips for the game Zombies Ate My Neighbors.
Bonus level:
Enter QSDZ as a password to play in the LucasArts offices.
Level Password
5 CYZQ
9 QBRX
13 PCFD
17 ZMLN
21 VQBB
25 QLNK
29 DNKJ
33 PDHZ
37 BKVR
41 BZPM
45 BNYZ