NARC Cheats

On Level 3, get in the car and run over the bad guys until your money, drugs recovered and rocket bombs reach 99. Then go to the third helicopter, but don't destroy it. Jump on the second dumpster and wait for the helicopter to appear, then shoot it down. Helicopters will appear repeatedly. Use all 99 rocket bombs to destroy them; you'll earn enough points to get five or six free men.

This only works in single-player mode. Start the game, playing as Max Force (the blue guy), just be sure to have only one controller plugged into the NES. Play the game as normal, until you are about to lose your final life. Just before Max dies, pause your game, insert controller 2 and then unpause the game. Just as Max's body hits the ground, press the START button on controller 2. If you time this correctly, you'll be able to continue your game as Hitman.