This is a separate list of video game crossovers, excluding family friendly meet ups such as Mario/Sonic, etc.
Street Fighter, in the Capcom vs SNK, and vs Namco games, also crossed with other Capcom titles. The storyline for Capcom vs SNK: Millenium Fight 2000, according wikipedia, is
“In AD 2000.
A special martial arts event is planned through a collaboration of the two most powerful world organizations: Garcia Financial Clique and Masters Foundation. The gala event � it is hoped! � will ease the political conflicts between the two powers.
Its name was “Millennium Fight 2000.
Many renowned martial artists have registered for the tournament. People around the world focus intensely on the upcoming exhibitions.
The long-awaited opening ceremony is a huge success.
No one notices the signs of impending chaos…”
The Capcom games are listed below.
Ghosts N Goblins
Art of Fighting/Fatal Fury/Savage Reign/Kizuna Encounter
King of Fighters (Includes many franchises on this list)
The Last Blade
Samauri Showdown Soul Caliber
Capcom vs Namico, according to wikipedia, went like this.
“The game centers around two original characters created for the game named Arisu Reiji and Xiaomu. The two of them work for a special unit called Shinra and they are tasked with investigating spirit and otherworldly disturbances. They are initially investigating a strange “sleeping sickness” in the Shibuya area of Japan, when it becomes apparent that something much larger is at stake. Characters, both good and evil, from other times and other worlds begin appearing in Japan in the year 20XX.”
The Namco games that appeared are as follows.
Genpei Toma Den
Tales of Destiny
Tower of Druaga
Valkyrie no Denestu
Capcom characters in this series are the same with the addition of Rockman Dash.