One of the big things fans flock to Mortal Kombat games for is the slew of Fatalities. And make no mistake, the Mortal Kombat 1 revamp has some scary ones that push the envelope. However, over the years, the franchise added X-ray moves, which became Fatal Blows as of MK11. In addition, Brutalities shifted from being a long combo meant to shatter enemies into moves that could end fighters mid-game.
Source:https://www.cbr.com/mortal-kombat-1-best-brutalities-ranked/