Here are some cheats and tips for the game Fortified Zone.
Unlimited lives:
Enter AAAA as a passwords for unlimited lives
as a male, or BBBB as a password for unlimited lives as
a female.
Resurrect:
Locate an energy unit after one of your fighters is
killed. Stand near the energy, press Select, and choose
the dead character to receive the energy.
Level Password
1 1111
2 3375
3 1681
4 1122