D2 UNLOCKABLES
Millennium countdown
Finish the game and allow the credits to end. Press A to see a black screen with a countdown to the year 2000. The countdown still progresses even after the year 2000 has passed.
Unlimited grenades, shotgun shells, and first aid sprays
Upon leaving the last cabin on Disc 4 you will find two grenades, shotgun shells, and various first aid sprays in the snow. Pick these up, then re-enter the cabin. Go back outside and all the items will be there again. REMEMBER: This also works by saving than restarting your file in any place on the last path.