Bruce Banner (Mega-Earth)

History
Robert Bruce Banner was born to a scientist and his wife in Nevada. As a young boy he watched his dad beat his mother, and eventually murder her. Then his dad committed suicide. Orphaned, Bruce won many science fairs and excelled in all of his academics. In college he graduated and after that eventually earned 7 PhD's.

Working on Gamma Experimentation
Throughout his scientific career, Bruce studied many things, but the most prominent field was gamma radiation. One fateful day, Bruce was testing out a gamma bomb made by him, but before he activated it, he noticed a young man, who happened to be Rick Jones, was driving out in the test site. Bruce halted the countdown and ran to save the boy. Unbeknownst to him, Bruce's assistant, Dr. John Larson, was jealous of Bruce and wanted his position. So he re-initiated the countdown. Once Bruce got Rick into the safe house, the bomb went off, sending a wave of gamma radiation knocking into him. It altered Bruce's cells, and he collapsed.

Hulk Unleashed
In the hospital, Bruce awoke. Amazed to be alive, he gathered his things and went home. But at night, he began to transform, into a grey skinned, muscular Goliath with immense strength but low intelligence. And he wreaked havoc in the city. At dawn, he was back at home in bed. Remembering everything he had done, he found that his cells had been mutated by gamma radiation, and the trans-metamorphosis was triggered by fluxes in his emotional state, otherwise being angry. Bruce was ashamed had sought to find a cure.

While many saw Hulk as a hero for when he tried to do right, many saw him as a monster or villain. One man especially: General Thaddeus B. "Thunderbolt" Ross. The general tried to eradicate Hulk on many occasions, but failed.

Joining the Avengers
Hulk was found by the Avengers and joined them when offered. As Bruce he worked with Tony Stark on new technology, and as Hulk on the battlefield. Once he joined them he was not viewed so much as a monster. But soon Hulk began experiencing personal trauma, and he left the team.

By now, Hulk had split from his rash, grey personality into the sensible, stronger green form. But now multiple personalities, versions of Hulk existed, including the original grey one and slimy mob-boss-type Joe Fixit. Determined to solve this problem, Hulk went to a psychologist named Dr. Lucas Flint, but he turned out to be Emil Blonsky in disguise, aka the Abomination. Hulk battled him and accidentally boarded a rocket on a test site nearby, getting launched into space.

Planet Hulk
Hulk was warped through the fabric of space and landed on a distant planet known as Saakar. On that planet, Hulk became the Champion of a contest there, run by the Grandmaster. But soon after that, Hulk left, and returned to Earth. The Hulk-like beings on that world overthrew the Grandmaster and ruled over the planet.

World War Hulk
Arriving to Earth, a year since he left, Hulk found a world filled with gamma beings: General Ross had been gamma mutated into the angrier, fiery Red Hulk. Rick Jones, who was now a close friend of Hulk, had become A-Bomb, but still retained his former intelligence. But Hulk could not focus on that at the moment. He transformed back into Bruce and hurried to the hospital. Because his cousin, Jennifer Walters, was dying and needed a large blood transfusion, Bruce being the only match. Bruce transferred the blood but the gamma-irradiated blood turned her into She-Hulk. Unlike Hulk, she retained her former intelligence. Together with A-Bomb, they took down the other evil gamma-irradiated beings.

Becoming Immortal
In a desperate fight with Thanos, Hulk for the first time was killed in action. In death, he saw a large green door open in front of him, calling him. When he walked through it, he was back to life, but a stronger, darker, larger Hulk was now in his place. It was night. Immortal Hulk returned to Manhattan only to find Abomination wreaking havoc. So he beat him up. After word that an Immortal Hulk existed, General Reginald Fortean set up a secret installation known as Shadow Base to personally deal with the Immortal Hulk. Fortean took Ross's place after his death a while back. Now that Hulk could not die indefinitely, they needed to at least capture him with a lure. So they apprehended Rick Jones, experimented on him, and combined him with Abomination, turning him into the horrendous Immortal Abomination. Horrified, Immortal Hulk destroyed that lab and left.

Below is Where He Lies
Hulk wandered the desert, searching. This Hulk never wandered; he always had a purpose to where he was going. He was found by Shadow Base's Red Dog, aka Crusher Creel, the Absorbing Man. They fought until Creel became possessed by the One Below All, at which Creel was able to absorb most of Hulk's gamma, which the One Below All used to tear open the "Green Door" that plunged everyone in the valley into what was very well Hell. Hulk was faced by his own father, who was seemingly possessed by the One Below All. Luckily, Creel overloaded with Gamma when he reached Bruce Banner, and sent Hell away.

After that, Hulk went to the Shadow Base lab where he had been captured, but General Fortean was able to subdue him, back into Banner, by using robots that emitted visible UV rays. At that weakness, Fortean's hitman shot Banner, attempting to kill him, but little did he know that Joe Fixit, the Grey Hulk Persona, had taken over Bruce's body and mind. Joe used it to hack into the system and make the robots emit strong gamma radiation instead of sun-type UV, which was harmful to Joe and Immortal Hulk. At this surging power boost, Joe was able to unleash the Immortal Hulk and defeat the man, and subdued him yet again and escaped into the night.

Return of the Red Hulk
As you know, since the opening of the Green Door, all Gamma beings have become, in most terms, Immortal. But when they did die, more hostile, stronger forms came out at night from their dead minds. As it turned out, all of the gamma radiation in the area had kick started General Ross's Gamma flow within his dead cells, and soon after night fell, Ross was back from the grave, as the Immortal Red Hulk.

Powers and Abilities
As Grey Hulk, Hulk was at his weakest. His strength, speed, stamina, and durability were high.

As Green Hulk, Hulk was stronger. His strength, speed, stamina, and durability were almost off the charts.

As Joe Fixit, he retained deadly intelligence and used firearms. His strength, speed, stamina, and durability were weaker than Green but stronger than the original Grey.

As Immortal Hulk, Hulk is at the strongest level for him. His strength, speed, stamina, and durability are off the charts, surpassing all other incarnations. He also is as smart as Banner, at least in a magical sense wise, and possesses human intelligence. He can smell lies, and this Hulk only comes out at night and on top of that if Bruce dies, but after the first death of Bruce Banner, he is technically always "dead", meaning Immortal Hulk, sometimes called Devil Hulk, can come out at night, most of the time on Banner's command.

Genius Intelligence - As Bruce Banner, he has genius intelligence.

Equipment
None.

Paraphernalia
None.

Trivia
None.