The zombies won't have a chance if you're armed with these passwords.

Level Password

2 EDK-NAI-ZOL-LDL
3 IDO-GEN-IAL-LDL
4 ADE-XOE-ZOL-OME
5 EFH-VEI-RAG-ORD
6 ADE-NAI-WRA-LKA
7 EFH-XOE-IAL-LDL
8 EDK-VEI-IAL-LDL