Cerberus, (or MA-39) is a Biological - Organic weapon that appears in the survival - horror videogames called Resident Evil. It was created by injecting the famous " T- Virus" to a doberman pinscher dog and is one of the most typical monsters of this game. It generally appears in the first stages of the game, and always attacks in packs. Usually, this creature is not so hard to defeat, but in the current versions of the game (and also the movies), Cerberus has presented several mutations, as dangerous tentacles on its back, which forces the player to get harder armery than the standard gun that is provided by the game.