Amadeus Cho is in self exile in deep space wen he gets a distress call from Sakaar. When his ship lands on the planet surface, he is captured and forced to fight in a gladiatorial arena by the evil despot known as The Warlord of Sakaar.
In the climactic battle between the two, the warlord unleashes his version of a worldbreaker, a Cold War era tactical nuke (how he got it is not explained) and drops right on top of the jade giants pointy coif.
We know that the Hulk can absorb nuclear energy, but so far the upper limits have not really been shown yet. My hypothesis is that the angrier he is the more he can absorb and you can see here, he was pretty angry…
The Hulk is on an island where Nightmare is manipulating reality and turning Mindless Ones into other creatures, one of those being Fin Fang Foom.
Fin Fang Foom tries to convince the Hulk that he will rule the planet and that the Hulk should kneel before him. The Hulk isn’t playing that game so Foom breathes his fire on him and it barely singes the Jade Giant.
Seeing the Inhumans under attack by the NYPD, Bruce Banner transforms into the Incredible Hulk in order to lend a hand. The Inhumans seeing The Hulk as their opportunity to show the world that they are not a threat attempt to subdue the jade giant and “save” the city. They get more than they bargain for when The Hulk proves to be an almost unstoppable force.
The Hulk is on a rampage! After destroying much of New York City, the heroes start to arrive on the scene to put a stop to the jade giant. The Human Torch unleashes a blast of flame but apparently The Hulk’s thunderclap is strong enough to snuff out the Human Torch’s flame! Iron Fist charges up his fist and punches at the Hulk, but the Hulk catches the blow and re-channels the energy back into Iron Fist’s body. Power Man charges at him from behind, and the Hulk responds by punching him through four skyscrapers.