If you want to play online with the best netcode, run the MK2 Plus ROM through Fightcade , which uses a specialized version of MAME to provide virtually lag-free fighting.
Unlike basic visual mods, MK2 Plus alters the gameplay code to bridge the gap between Mortal Kombat II and Ultimate Mortal Kombat 3 . Developed as an arcade-level modification, it adds a massive suite of features:
: The "Plus" version introduces a combo meter and refined physics, making the combat feel more fluid and rewarding compared to the original arcade's stiff limitations.