Nemesis is encountered many times throughout the game. When confronted, the player can either exit the area to run away from it or do enough damage to it to temporary bring it down. However, it can follow the player from some areas to other areas, but it cannot go into save rooms. If the player does enter a save room while they are being chased by Nemesis, he will appear outside, waiting for the player. The Nemesis will always outrun the player given enough distance. Strong weapons like Grenade Launchers will only sometimes stagger it.