Mortal Kombat is known for its violence regarding fatalities, brutalities and the recently added x-ray. It seems that they get more graphic and violent with each instalment and I learned that MK11's developers actually suffered due to this to the extent that someone suffered PTSD:
But wow, that's pretty intense and really disturbing actually
'I'd Have These Extremely Graphic Dreams': What It's Like To Work On Ultra-Violent Games Like Mortal Kombat 11
Mortal Kombat 11 is a brutal game. That’s what you come for—sensational, over-the-top violence that’s inventive and gratuitous on a level that doesn’t exist anywhere else. It can be shocking in its detail and funny in its execution, but it’s always arresting. It’s also short. Fatalities, gory...
kotaku.com
But wow, that's pretty intense and really disturbing actually