All cheats on
Enter Blizzard as a case-sensitive password.
From Linda.

Invincibility
Enter Vampire as a case-sensitive password. 

All weapons
Enter Tornado as a case-sensitive password. 

Primary weapons always available
Enter Dark Angel as a case-sensitive password. 

Unlimited secondary weapons
Enter Chimera as a case-sensitive password. 

Unlimited afterburners
Enter Avalanche as a case-sensitive password. 

Unlimited money
Enter Hydra as a case-sensitive password. 

All ships
Enter Thunderchild 

Mission and FMV select
Enter Demon as a case-sensitive password.