When the first Mortal Kombat game burst onto the scene in 1992, it featured a roster of seven playable characters, each with their own unique style. As of today, there are more than 70 playable characters across the entire series, some of which come from other franchises, such as the Xenomorph from Alien and Kratos from God of War.
Source：https://www.cbr.com/mortal-kombat-best-characters/
