Where Anyone is Possible
Unlimited Strength All the incarnations of the Hulk, except for the Grey Hulk, can lift approximately 100 tons when calm. The Grey Hulk starts off at approximately 75 tons. As the familiar old addage goes, "the Madder the Hulk gets, the Stronger he gets." During times of high stress or anger, an increase in adrenaline causes the Hulk's strength to increase dramatically. There has never been a limit shown as to the highest strength the Hulk can reach thus it is assumed it is limitless. The Hulk has shown many incredible feats of the years, including holding up a 150 billion ton mountain during the Secret Wars and breaking open Onslaught's armor when the combined might of the rest of the world's heroes couldn't even make a scratch in it.
Thunderclap The Hulk can slam his hands together to create a large thunderclap-type concussive force. He has imployed this for various reasons including creating a concussive blast to hurt enemies, to blow away gas or put out fires, or even deafen people.
Leaping/Jumping Ability The Hulks's leg muscles are augmented so much that the Hulk can travel miles in a single casual jump. Jumping is the standard mode of transportation for the less intelligent incarnations of the Hulk. The Hulk has been known to make it into the earth's atmosphere on a single leap. Given the strength of the leap and the angle of trajectory when landing, the Hulk can create large craters and limited seismic activity when landing.
Accelerated Healing The Hulk has probably the quickest healing factor than anyone in the Marvel Universe, including Wolverine. Wounds that would be deadly to most other heroes takes just a short time for the Hulk to recover. During a battle with Vector, he repelled all of the skin off of the Hulk leaving just exposed flesh and muscle. It took the Hulk minutes to regain the mass and be completely healed. During a battle with Speedfreek, he cut the Hulk's stomach open with adamantium blades. The Hulk had to hold his stomach to prevent his insides from spilling out. Within minutes the wound had healed, but unfortunately the skin had healed around part of the Hulk's fingers. He had to rip his fingers out of his stomach and allow it to heal again. It should be noted that during the transformation from Bruce Banner to one of the various incarnations of the Hulk and back, he gains and loses large amounts of mass. The source of this mass is unknown. The amount of mass transfered is dependent on the incarnation, such as the Grey Hulk has much less mass than most of the other incarnation.
The Hulk is immune to all known Earth-based diseases, including AIDS. He can operate under intense conditions for extended periods of time due to his body not developing fatigue toxins quickly.
Dynamic Durability It has been stated that the Hulk possess a dynamic durability in relation to his increase in anger. Similar to how the Hulk gets stronger as he gets angrier, he also heal quicker and his skin becomes tougher. It is not known if the increase in healing and skin-toughening is related to Incarnation.
Breathing Underwater The Hulk has been seen on the ocean floor a number of times and is able to breathe due to his body developing a gland which creates an oxygenated perfluorocarbon emulsion which fills his lungs and equalizes the pressure. He is therefore able to breathe fluid and avoid decompression and nitrogen narcosis.
Resistance to Mind Control
The Hulk has always shown an ability to resist mind control. This is probably due to the fact that there are multiple personalities residing in the Hulk's mind and a person can not control all of them at once as they offer resistance.
Unusual Mental Abilities
Bruce was always afraid of his father and when he accidently killed him, he blocked the incident in his mind. He still had a fear that his father would come back to get him so when Bruce turned into the Hulk, he gave himself the ability to see ghosts so that he could see his father coming for him. This ability has also allowed him to see Dr. Strange's astral form while others can't. Another mental ability related to this is the fact that no matter where the Hulk is in the world, he can always instinctively find his way back to the site of the original Gamma Bomb explosion in the desert. This was discovered to be caused by the spirit of the Maestro's remains calling the Hulk back so that he could absorb gamma radiation and reform.