To access the ''password'' screen, choose ''Load Game'', then press B when the list of saved games appears. Now enter F60? VQCH ?BHF DQQL as password.
To do the secret mission under Hard mode enter the password: FVBS LBBB 7VBC 3BGB
If you have a controller pak with saved Quake 2 games, then press B and enter the following: S3TL 0WGR V1TY ????
As a password enter S3TCOOLCOLORS???
To do the secret mission under normal mode enter the password: FLBC ZBBB FLBC ZBF9
Type in FVBS LBBB 7VBC 3BGB to play the secret level on Hard Difficulty
Type in FLBC ZBBB FLBC ZBF9 to play the secret level on Normal Difficulty
Go to the Password screen and enter FBBC VBBB FBBC VBF7 This brings up the easy setting for the secret level.
As a password enter FVBSLBBB7VBC3BGB
As a password enter S3T1NF1N1T3SHOTS
Easy Mode Level Passwords for Quake 2:
Use the following trick to destroy Gladiators quicker, without getting hit. Run up to them and let them try to use there claw on you. Shoot them with either the railgun or super shotgun. Repeat until it is dead.