Mars is an extraterrestrial Robot Master found, activated, and used by Dr. Wily. He was first seen in Mega Man V as one of the games 8 Robot Master Stardroids. Like Napalm Man, Mars is a virtual walking arsenal - in addition to his signature weapon, the Photon Missile, he has a large battery of shoulder-launched missiles, an autocannon, and a pair of bomb launchers in his arms. He is also mounted on tank treads, like his predecessor from Mega Man 5. Mars is armed and armored to the teeth, and is widely regarded as the hardest Stardroid.