Capcom vs. SNK 2: EO, released for the Xbox in 2003, is a crossover fighting game featuring characters from Capcom and SNK game franchises. This title is an update of Capcom vs. SNK 2, with the 'EO' standing for 'Easy Operation', a system designed to simplify complex inputs for special moves. Players compete in battles using a roster of fighters from series such as Street Fighter and The King of Fighters, utilizing innovative mechanics like the 'Groove' system that alters gameplay styles.