If you enter the code HKFL on the password screen you will be warped to the level after the Skynet destroyer.
Game Genie Codes
DLLB-TA3N Don't lose special weapons when you die DBB3-CD0D Start with 9 lives DEB3-CD0D Start with 15 lives--IGNORE COUNTER DE63-C460 Rockets do more damage DE60-4460 Normal pistol does more damage 30 7D66-1F00 Plasma Rifle does massive damage 31 FD64-446F Only 10 Terminators to kill on the 3-D Stage 32 7D64-446F Only 30 Terminators to kill on the 3-D Stage
Finish the game and during the credits screen, press B. After the original credits screen, you'll see strange credits like "Thanks to Bill Clinton" and "The Beatles."