Marvel vs. Capcom is a series of fighting games created by Capcom in which characters created by Marvel Comics and Capcom's own characters appear together. While it was the first Vs. series involving Capcom, the Marvel brand exists to distinguish it from Capcom's other Vs. series with SNK (Capcom vs. SNK) and Tatsunoko Production (Tatsunoko vs. Capcom: Ultimate All-Stars). The Marvel characters depicted in these games were often based on their incarnations in various 1990s animated series, particularly X-Men, and were often voiced by the same voice actors. Many of the characters and fighting mechanics used in these games were first developed and refined in two other fighting games Capcom had developed earlier, serving as precursors to the series: X-Men: Children of the Atom, which featured characters strictly from the X-Men universe (with the exception of Akuma), and Marvel Super Heroes, which gleaned characters from Marvel's entire roster (X-Men included, with the exception of Anita). Seth Killian consider these two games to have laid the foundation for the Versus series. There does not appear to be a concrete story behind each
Contributions by JuJube, SilentRage, and KelvSYC.