Iron Man

From: toonarific.com
The Marvel Superheroes consisted of five different segments, each starring a well-known superhero from a particular Marvel comic - The Sub-Mariner, Captain America, The Incredible Hulk, Iron Man, and Thor.

Iron Man was another Stan Lee creation. While in Vietnam to see his weapons designs tested out first-hand, millionaire inventor Tony Stark was struck in the chest with a piece of shrapnel. In order to keep himself alive, Stark jerry-rigged an armored suit, part of which acted as an external pacemaker to keep his damaged heart alive. But the benefits were much more than medical: as Iron Man, Stark possessed the powers of flight, super strength, and an array of weaponry. After the war, Stark used his wealth and technology to make numerous modifications to the suit, the better to help him fight criminals like the Mandarin.