Colossi are the military mechs utilized by The Golden Branch Demarchy and the former Apostolosian Empire. Although similar to riggers in appearance and scale, they were independently developed, utilizing very different control schemes and a programming language that is incompatible with OriCon systems. In addition to large Colossi like Cassander's Megalophile and the Apokine's Arete, Apostolos utilized small power armored suits called Hoplites, although whether these are officially classified as Colossi is not confirmed.