The implication later in the story is that his powers just got stronger. It's likely that the idea is the same as red and blue flames; blue flames are hotter and implied to be more powerful. Or just new applications of his powers that he hadn't needed before.
The Nuform theory appears to be the most credible, given the ending to Spider-Man Miles Morales, which has Miles absorbing some Nuform as the electrical effect that courses through him begins to turn blue, much like what is shown in the trailer.
What is Miles Morales blue and yellow electricity?
During the main story, specifically within the Not On My Watch mission, Miles will acquire brand new abilities, changing his electricity from yellow to blue. This formally "evolves" his powers from Venom abilities into Evolved Venom abilities.
Bitten by a genetically engineered spider known as specimen 42, which is slightly different from the one that granted Peter Parker superhuman powers, Miles Morales possesses abilities similar to the original Spider-Man's, including enhanced strength, agility, and reflexes, the ability to adhere to walls and ceilings ...
He decided that giving up everything he cherished would not have been worth the payout. He helps the Spider-Men before willingly turning himself in to the police, displaying a desire atone for his crimes.
How Miles Gets His Blue Electricity - Marvel's Spider-Man 2
Is Martin Li a villain?
As a wealthy and widely hailed philanthropist, the man known as Martin Li uses his financial resources to help those in need. But in his other identity, that of the ruthless underworld figure Mister Negative, he uses his extradimensional energy powers to corrupt anything he touches as the leader of a criminal empire.
Using his powers, Martin purges the Venom symbiote's control over Peter, inadvertently creating the Anti-Venom symbiote. This cost Martin his powers as Mister Negative, with Martin vowing to make the most of his redemptive second chance.
While Miles can tolerate far higher energy levels than a normal human, there are limits to what he can safety absorb. Beyond a certain threshold, Miles will be forced to release excess energy in an explosive electric blast.
He's stronger, faster, tougher and has a better Spider-sense. Miles has more varied powers and it's not even very relevant since Peter has replicated all of his powers through tech. The “New suit” even has pyrotechnic webbing and electric webbing, the “big time” outfit has built in light-bending tech.
His current superhero name Spin came from Gwen's suggestion of calling him Spider Spin, leading to him choosing the name Spin, in the short WEB-STER when he has to come up with a new superhero name so that WEB-Ster will not be confused. He is the first member of Team Spidey to have both his parents shown on screen.
Spider-Camouflage: Miles, including his clothing, can blend into his surroundings, allowing him to sneak up on his enemies or, in some cases, flee from them. The resulting effect closely resembles that of invisibility.
The ending for Across the Spider-Verse pulls somewhat from Spider-Men in having an evil Miles Morales, though it does so in a far different manner. Here, this alternate Miles from Earth-42 looks almost identical to his Earth-1610 incarnation, albeit with a different hairstyle.
So when miles was born, Jefferson didn't want miles to carry. the baggage of the criminal background, so he decided to give miles his mother's last name. The second reason is a little more dark, and it involves Miles's grandfather. and his abuse of his two sons, Jefferson and Aaron.
In the Marvel Comics storyline "Ultimate Fallout," Miles Morales, taking on the mantle of Spider-Man in the wake of Peter Parker's death, briefly wore the Venom symbiote. Following Peter's demise, the Venom symbiote sought a new host and bonded with Miles.
Nuform was developed by Roxxon, with Rick Mason leading its development. While developing it, Nuform proved to be effective but harmful. The majority of the development team developed life-threatening complications from prolonged exposure, with Mason suffering from bone marrow decay.
One interesting tidbit is Venom was originally purple before switching to the all-black look seen in the film. As noted by WilliamD1123, a Venom action figure based on the film was purple, because that was the original color scheme for the villain before the change.
Against Miles Morales, however, Batman is almost guaranteed to win. Having faced off against almost every type of enemy imaginable, it is safe to assume that Batman would have a plan for someone like Miles. Batman's second big advantage is in Miles' own inexperience.
Who would win a fight between Superman and Spider-Man?
Whether it is his superhuman strength, speed, vision, or invincibility, Superman has the edge over most foes, with fighting skills and experience that are unmatched. It's no surprise that Superman would beat the web-slinger rather easily.
Thanks to his spider-sense, he can perceive dangers around him before he can see or hear them. However, unlike Peter Parker, he also has the power to direct a bio-electric charge like a sting, including the ability to stun enemies with a "venom blast" and strike with concussive force.
Hailey Cooper is a recurring original supporting character in Marvel's Spider-Man series, first appeared in Marvel's Spider-Man: Miles Morales. As of Marvel's Spider-Man 2, she becomes Miles Morales' love interest.
Miles Morales (also known as Spin, Spider-Man or Kid-Arachnid) is a teenager of black-Hispanic descent. Miles is the second Spider-Man from an alternate universe in which his world's version of Peter Parker died in battle.
Rabble is Raneem Rashad, a tech genius with an army of drones who developed a seething hatred of Miles Morales when she was passed over for a place at the Brooklyn Visions Academy in favor of him.
Martin Li's actions led to tragic consequences in the life of Miles Morales. A terrorist attack at City Hall planned by Li resulted in the death of Miles' father, Jefferson Davis. This led to Miles harboring intense anger and resentment towards Li for this act.
Just like Brock in the comics, Mister Negative's energy bonds with a trace amount of Symbiote that remained in Peter and created the Anti-Venom. Instead of negating his powers, it instead restored his Symbiote abilities and made them toxic to Venom.
He escaped with the help of two other experimental inmates and soon developed two personalities, the kind-hearted Martin Li and the villainous Mister Negative, the latter of the two developing the ability to generate a black electrical energy that could be used to heal, control others, or charge objects with his touch.
