Capcom vs. SNK 2 EO is the same game but with minor changes in gameplay and the inclusion of an EO ("Easy Operation") system that allows the player to perform specific attacks by simply moving the right analog stick in a certain direction.
Before selecting a team, the game offers a selection of "Grooves", which change the way the game is played, as well as "AC-ism" or "GC-ism" Grooves; GC-ism simplifies the control scheme, originally designed for the GameCube gamepad.