Secret Mortal Kombat Arcade Menus Discovered

Secret Mortal Kombat Arcade Menus Discovered
By Source, Fair use, https://en.wikipedia.org/w/index.php?curid=35590852

By Source, Fair use, https://en.wikipedia.org/w/index.php?curid=35590852

Years after the franchise started, people are still finding easter eggs in the Mortal Kombat arcade games. Check out the link below for the secret button inputs you need to make in order to unlock these menus. I'm not sure how this person figured them out.