First teased in Into the Spider-Verse, 2023's Spider-Man: Across the Spider-Verse finally debuted Spider-Man 2099, an unusual version of Spider-Man.
Miguel O'Hara, a.k.a. Spider-Man 2099, debuted in Spider-Man: Across the Spider-Verse after first being teased in 2018's Spider-Man: Into the Spider-Verse. Released on June 2, 2023, Spider-Man: Across the Spider-Verse caught up with Miles Morales sixteen months after he first became Spider-Man, and saw the Brooklyn teenager embark on a multiversal adventure with a number of interdimensional Spider-People.
Working for Alchemax, Miguel strove to create enhanced super soldiers by imprinting the genetic codes of long-dead superheroes into regular humans. When a test subject, Mr. Sims, was tragically transformed into a hideous creature and died, Miguel handed his resignation to his boss, Tyler Stone, but unwittingly accepted a drink offered by Stone which was laced with the highly-addictive, hallucinogenic drug Rapture.
Spider-Man 2099 also has telescopic vision and night vision, with a visual acuity far more advanced than any regular human. He also has a regenerative healing factor that allows him to heal from wounds remarkably quickly and also grants him an elongated lifespan as his cells continuously repair themselves. Unlike other Spider-People, Miguel can communicate with others telepathically, though the full scale of this ability has yet to be explored.
Perhaps one of the biggest changes concerns Miguel's backstory, however, which was far more tragic in Across the Spider-Verse. While much of his origin story as Spider-Man 2099 is assumed to be the same, Miguel was revealed to have previously replaced his variant in another reality, gaining a family in the process. However, his existence in that reality broke a series of canon events in Spider-Man: Across the Spider-Verse, leading to the utter destruction of that universe.