Resident Evil is the zombie horror game, but its shambling corpses are slow and easy to avoid. To reinvigorate the series, Resident Evil 3: Nemesis created an unpredictable nightmare man who attacked unpredictably with terrifying speed. It robbed players of their sense of control, and in doing so created one of gamings scariest monsters.
Source: N4G PC Resident Evil 3's Nemesis Is Still Terrifying