The Prog Ares (English dub: /ˈprɔːɡ ˈɛərˌiːz/) is a Main Boss in Xenoblade Chronicles X. It is a Human-Made Skell fought at level 45 in the Ganglion Weapons Hangar in Cauldros during Chapter 11. It is piloted by Lao. Following its defeat, the Prog Ares can be re-battled in the Time Attack Mission The Expert Warrior.