Because of the thickness and strength of the Hulk's skin, it's nearly impossible for any form of artillery to hurt him. Sure, everyone's seen bullets bounce off of the Hulk, but when we say he's bulletproof what we really mean is he's BULLETPROOF.
Banner, driven to the brink once supposedly took out a gun and tried to shoot himself in the mouth. He transformed into the Hulk and spit out the bullet.
Hulk's skin is invulnerable to almost any weapon and pretty much nothing can hurt him. However, there is one other reason why Hulk is immortal and able to win any fight. Just like Wolverine and Deadpool, if Hulk is injured in battle, he possesses regenerative powers and his body will heal from anything.
Yes, The Hulk can survive a nuclear blast at ground zero. In fact, nuke & gamma bombs and the like are used against him quite often. Here are few times the hulk has had massive explosions used against him. From his early days of comics to his more recent events.
The Hulk is known for his strength, not his speed. But believe it or not, Bruce Banner is faster than a literal bullet - just not how fans think. “Faster than a speeding bullet" are iconic words referring to the equally iconic Superman, famously able to stop bullets as well as outpace them.
Because of the thickness and strength of the Hulk's skin, it's nearly impossible for any form of artillery to hurt him. Sure, everyone's seen bullets bounce off of the Hulk, but when we say he's bulletproof what we really mean is he's BULLETPROOF.
Thanos vs MCU Hulk
The Mad Titan was easily able to dispatch the Hulk without even using the only Infinity Stone he had available at the time: The Power Stone. The polished fighting style of Thanos proved too much for Hulk and his overall brutality and savagery.
The final verdict
It would be a very long fight since the Hulk is incredibly hard to kill, thanks to his super-tough skin. But, in the end, Doomsday would be the winner due to his never-ending strength and endurance.
Strength level
In human form Bruce Banner possesses the normal human strength of a man of his age, height, and build who doesn't engage in regular exercise. When the Hulk gets enraged his strength increases exponentially. The Hulk has no strength limit, his strength varies from 150 tons to practically unlimited levels.
In the modern Marvel Comics, The Grandmaster and the Hulk are BOTH immortal.
Horrified by what he could become, Hulk created an unconscious failsafe in his psyche that caused his body to revert to a powerless Bruce Banner whenever he got too angry.
As you know, Bruce is a pretty thin guy, so we assume his junk is pretty standard — but The Hulk's junk is going to be massive. This is going to make sex a real gamble because you might end up with a 20-inch-long and 7-inch-wide veiny rod of tissue in one of two orifices . . . neither of which is going to pleasant.
Still, while the Hulk has the brawn, his brain is lacking. There have been other heroes who have gotten ahead of him just with their smarts and careful planning. Obviously, big hitters like Sentry, Galactus, and even Superman have been able to withstand the emerald giant's assault.
Bruce explains that Hulks metabolize alcohol at an incredible rate and thus cannot get drunk, thus their drinking sessions are, "All buzz, no barf." The "buzz" experienced while consuming alcohol is a stage of drunkenness. If they cannot get drunk, they cannot get a buzz.
Due to the gamma radiation that birthed him, his skin is nearly indestructible and takes massive force to break. Throughout Hulk's many on-screen fights, he has only bled twice, and both circumstances prove it takes a unique set of variables to accomplish that.
Yes, although this power is more typically linked to aquatic superheroes like Namor, the Sub-Mariner, the Incredible Hulk can breathe underwater, enabling him to swim and fight deep beneath the ocean indefinitely.
Once contact is made with whatever the Hulk is chasing, the force levels almost everything nearby. In one instance, the Hulk ran head first into a Trillion ton punch with the weight of several worlds behind it, and it only slowed him down for a single moment before he was back on the move.
No world was safe from this Hulk's power or rage, and it was a living embodiment of entropy. Without an Infinity Gauntlet, destroying planets with one punch was far beyond what any other Hulk or being in the Marvel Universe could muster. This made the Entropy Hulk the strongest Hulk of all.
This might be up for debate, but Marvel has answered it in their comics. Hulk is difentiely stronger than Juggernaut. They solved this question in Juggernaut Number 2, where Cain Marko actually admits the Hulk is indeed stronger.
Thanos is one of the most deadly and celebrated villains of the Marvel Universe. It's incredibly tough for even the Incredible Hulk to stand against the supervillain. Be it the Marvel Comics or the Marvel Cinematic Universe, the Hulk has never defeated Thanos in a one to one hand combat.
A Marvel fan seems to have figured out the real reason why Bruce Banner—played by Mark Ruffalo—could not transform into Hulk at will in last year's Avengers: Infinity War. Hulk was being too difficult to control for Bruce Banner in Avengers: Infinity War.
This meant that the persona had all of the strength of the traditional Hulk (maybe more) and the intelligence of Bruce Banner. Unfortunately, while Endgame tried to bring this idea to life, it failed to maintain his strength and he was far from the strongest character on the battlefield by the final battle.
When Thanos got control over all six Infinity Stones, he became one of the most powerful beings in the Marvel Universe, though on his quest to obtain them, Thanos revealed that he was afraid to face the Hulk.