X-Men vs. Street Fighter
Everyone knows the Marvel vs. Capcom franchise, but the Vs. branding began with X-Men vs. Street Fighter in 1996. Sure, its roster isn’t as expansive, but it’s still a pretty impressive fighter that acted as launch pad for some of the best games in the genre. The 2D fighter draws from Capcom’s iconic fighting series, but also riffs on Street Fighter’s core concepts like letting you tag in a secondary character. This was the basis for the Vs. games that would follow and were far less restrained by X-Men vs. Street Fighter’s parameters, but even so, it’s still a great fighting game with gorgeous sprite work that holds up to this day.