Following his accidental exposure to gamma rays during the detonation of an experimental bomb, Banner is physically transformed into the Hulk when subjected to emotional stress, at or against his will, often leading to destructive rampages and conflicts that complicate Banner's civilian life.
No superhuman powers, but through the Super-Soldier Serum and "Vita-Ray" treatment, he is transformed and his strength, endurance, agility, speed, reflexes, durability, and healing are at the zenith of natural human potential.
"Spider-Man" centers on student Peter Parker (Tobey Maguire) who, after being bitten by a genetically-altered spider, gains superhuman strength and the spider-like ability to cling to any surface. He vows to use his abilities to fight crime, coming to understand the words of his beloved Uncle Ben: "With great power comes great responsibility."
Barry Allen is a police scientist with a reputation for being very slow. One night, as he is working late, a lightning bolt shatters a case full of chemicals and spills all over Barry. As a result, Allen finds that he can run extremely fast and has matching reflexes and senses. He dons a set of red tights sporting a lightning bolt dubs himself the Flash.
Batman's secret identity is Bruce Wayne, a wealthy American playboy, philanthropist, and owner of Wayne Enterprises. After witnessing the murder of his parents Dr. Thomas Wayne and Martha Wayne as a child, he swore vengeance against criminals, an oath tempered by a sense of justice. Bruce Wayne trains himself physically and intellectually and crafts a bat-inspired persona to fight crime.
*not actual pictures of characters ( view party pics)