Spider-Man 2099 Meets Spider-Man is one-shot crossover event starring Miguel O'Hara (Spider-Man of the year 2099) and Earth-616's Spider-Man.
Miguel and Peter Parker, the Spider-Man of the Heroic Age, find themselves having switched places, with Miguel waking up next to Peter's wife, Mary Jane, and Spider-Man finding himself in the future. They discover that their predicament is caused by Fujikawa (in the Modern Age) and Alchemax (in the year 2099) running experiments on a temporal energy generator. While Peter tackles the Vulture of 2099, Miguel faces Venom (Eddie Brock). Miguel realizes that this temporal anomaly is what will cause the end of the Heroic Age, since where he is in the past is when history tells him all the heroes and much of Earth's culture and technology were wiped out.
Soon, a time-traveling female Hobgoblin of the year 2211 (Robin Borne) from the alternative universe of Earth-9500. They are aided by this Hobgoblin's father, Spider-Man (Max Borne), and eventually everyone is sent back to their respective times.
- It is noted at the end of this adventure that by being in the past, Miguel has slightly altered his present world of 2099 since he has postponed when the Heroic Age will end to a now unknown date. This implied that the world of Marvel 2099 might no longer have been the definite future of the modern Marvel Universe and in later stories it was said that Marvel 2099 occurs on the parallel world of Earth-928 (mainstream Marvel stories occur on Earth-616).