Iron Man, aka Anthony "Tony" Stark, is a Marvel superhero who fights using advanced armor of his own design. He appears in several Marvels vs. Capcom games.
Tony Stark was born a mechanical genius. After his parents died, he took over his family's company Stark Industries, which manufactured weapons. Enjoying women and alcohol, Stark didn't seem to care much for the rest of the world, until he was kidnapped by terrorists using weapons of his design. They commanded him to build them a weapon with the help of Professor Yinsen, another scientist kidnapped by them. Instead of a weapon, they took their time to build something to help them escape: a suit of powered armor. Stark used this armor to break out of confinement, but Yinsen was killed during their attempt. Stark decided that using this armor, he would make up for his past sins and help the world. He was rescued and brought back to the US by James "Rhodey" Rhodes, who would later become Stark's pilot and the hero War Machine after Stark gave him his own armor.