Mark Ruffalo’s version of the Smart Hulk was a progressive evolution of the iconic character that fans have witnessed throughout various MCU installments. The reason why he is regarded as a very powerful iteration is because of Bruce Banner’s combined ability to unleash the beast all while keeping its sense of reason and logic.
As interesting as that sounds, there are more versions of the famed monster that are far more capable of immense destruction. Some of these embodiments even wield otherworldly powers, putting Ruffalo’s green-fleshed giant to shame.
5. Kluh
According to Comics Unlocked, this version is the “more monstrous form when he is depressed.” His powers are also significantly increased and he is often shown with black and red skin. Created by the extraterrestrial Xemnu, this beast was designed to become the character’s perfect antagonist. Interestingly, this is the dark and twisted version of the Avenger from an alternate reality.
4. Blue Hulk
This powerful goliath supposedly gained the powers of Captain Universe when he bonded with the Uni-Power. After he took the cosmic powers, he transformed himself into a shade of blue that also comes with amplified strength. The Hulk has had many colors, and blue was definitely one of the strongest.
3. Maestro
Maestro is regarded as the “evil post-apocalyptic version of Hulk” after absorbing additional gamma radiation that gifted him with incredible Titan strength. What is more interesting about this character is that he retained the intellect of Mark Ruffalo’s Bruce Banner, eventually making him one of the most lethal versions of the brute in the history of Marvel Comics.
2. World Breaker Hulk
This version gained tremendous power after devouring the energy of an entire planet, which made him strong enough to obliterate worlds and even destroy all reality. In the comics, the World Breaker Hulk has the ability to overpower all incarnations of the character, making this one a force to be reckoned with.
1. One Below All Hulk
Considered to be the truest form of the Hulk, this personification of the character is controlled by an ancient cosmic entity from the below place, making him a Cthulhu-like source of evil. The character is believed to be powerful enough to kill Galactus, a cosmic being that feeds on the life energy found in planets for sustenance. Some of the terrifying abilities of this antagonist include manipulating reality and corrupting individuals, though its fullest potential has never been defined in the comics.
