 Some online games, such as "Battlefield 1942", include specific features to counter cheating exploits, by incorporating tools such as PunkBuster, nProtect GameGuard, or Valve Anti-Cheat.However, much like anti-virus companies, some anti-cheat tools are constantly and consistently bypassed until further updates force cheat creators to find new methods to bypass the protection.In single-player games, there are a number of plug-ins available to developers to use to stop cheaters.