Combat Species

Combat Species is the name of the program in Digimon that makes them want to fight. This is seen when Guilmon gets angry and fights Renamon as soon as they meet. renamon thrives off of the Combat Species so as to get stronger, but because of that it is hard for her to truly grow. Terriermon's Combat Species seems to be broken, or undeveloped, as he does not like to fight at all, and as such he, too, has trouble growing. Impmon, however, cannot grow normally because he cannot rely on his twin partners, so seeks help from a godly being. Please note that this is seen in Digimon Tamers, and the other series have other forms of Combat Species.