NARC is a 1988 arcade game designed by Williams Electronics. It was ported to the Commodore 64, Atari ST, Amiga, ZX Spectrum, and Amstrad CPC home computers by Ocean Software in 1990, and to the NES in 1990 by Rare.

A trainer offers one or more cheats like unlimited lives, invincibility, more ammo etc. Because this is done during runtime a trainer is not to be confused with a savegame editor.