Successfully complete the game after finding all fifteen dog tags and save. Start another game with the yellow "Rear Of Compound" save file (00:00:00 time). The game will begin with extra ammunition (500 bullets, 50 shotgun shells, 30 grenade rounds, 1,000 flame units, and 25 Ultimate Launcher missiles) and extra health items (20 Recovery Unit A, 5 Recovery Unit B, 5 MTS Vaccine, 5 Booster Shot A and 3 Booster Shot B). However, enemies will be more difficult in this mode.