Miles Gonzalo Morales

As Prowler, he wears a purple costume and a mask with a cape and gauntlets with gadgets. He also upgraded his boots to resemble Jordan shoes.

As Miles G. Morales, he resembles his counterpart in terms of his face. The only difference is that he has a more stern expression and wears his hair in braids.

Hes not nice he will do any damage to you and hes ruff with fighting and trying to kill you in an harsh way and hes dark and not happy about you.

The Prowler

Supervillain

Gauntlets and boots that can be charged with energy to increase strength and allow for gliding
Titanium-laced claws
Combat expertise
Brute strength
Superhuman agility
Endurance
Stamina
Durability
Stealth
Ability to nullify his counterpart's spider-sense

Committing crimes with his uncle.

Capture his Earth-1610 counterpart. (succeeded)

Kidnapping
Assault
Conspiracy
Attempted murder

Enigmatic Supervillain

It's possible that death of this Miles' father stemmed from the fact that no Spider-Man was around to prevent it since Earth-42 was deprived of one when its genetically engineered spider was transported to the main Miles' universe by Kingpin and bit him instead, something pointed out by Miguel O'Hara and Spot.
This would also explain why Earth-42 Miles refuses to let his counterpart go and save his father, believing him to be at fault for his death and wants to make him feel the same way he feels.
He is the second evil version of Miles Morales, the first being his Earth-616 counterpart, better known as Ultimatum.

Despite this, Miles does seem to love his family, as it's heavily implied that he and his uncle were the ones who painted a giant mural of Miles' late father in his honor similar as to how Earth-1610 Miles and his dad did for their Aaron following his death. On that note, he seems to care for his uncle, signified by how the two seem to have their own handshake and how he supposedly took up the mantle of the Prowler after him. Miles G. Morales of Earth-42 presumably had a similar upbringing to the main Miles Morales who resided in Earth-1610B. Visual cues from the Spot's backstory indicate that Earth-42's radioactive spider was present in a classroom Miles G. Morales was in, but was later transported to Earth-1610B where it bit that reality's Miles Morales. Because of this, Earth-42 does not have a Spider-Man to protect New York City.

Miles G.'s father Jefferson passed away through unknown means. At an unknown point in his life, a grieving Miles G. joined his uncle Aaron in turning to a life a crime, taking up the mantle of the Prowler.

Spider-Man: Across the Spider-Verse
After Miles Morales was transported to Earth-42 instead of his home dimension, the Prowler and uncle Aaron captures him and takes him in for interrogation. The Prowler learns that the other Miles' father is still alive, before revealing his identity to his captive, who is shocked to find it is another version of him that's the Prowler.

Miles tells him that he has to get back home because his father's life is being threatened by a villain. Despite Miles' pleas, the Prowler refuses to let him go and implies that he plans to kill him. The movie ended with an intense staredown between them and Miles attempting to escape.

Prowler serves as a dark counterpart to the “main” Miles Morales from Earth-1610. He has a brooding, evil character, having lived through the death of his father, something that Earth-1610 Miles has yet to experience. He is quite apathetic, as he was not remotely fazed when encountering another version of himself and was casual in talking with him. He also displayed no sympathy towards the fact that The Spot plans to kill his counterpart's father and home, even refusing to let his counterpart go.

You and Peter B Parker.