Metal Gear Solid 2: Substance Cheats

When playing through Raiden's variety VR missions and
you reach Gurlugon, hide behind the tall box on the left closest
to Gurlugon. When the box is destroyed, a magazine appears. Gurlugon
will go crazy and ends up killing himself. This counts as a success
in the VR mission.
Trainer
Saved game file: Unlimited ammo and Stealth unlocked in Tanker and Plant chapters by David

To knock out an enemy's radio easily, when you hold them up shoot it (on the belt to the right of their back). Also shoot an enemy's radio when they are knocked out to prevent them from calling for help if they wake up.

Unlock all Characters in VR Missions:
Enter the code 'UUDDLRLRBA' as your name.

Unlock Ninja Raiden:
Get 50% on Raiden's VR missions

Unlock Pliskin:
Get 50% on Snake's VR Missions

Unlock Raiden X:
Get 100% on Raiden and Ninja Raiden's VR missions
Unlock Tuxedo Snake:
Get 100% on Snake and Pliskin's VR missions