A tough but fair fight is great, but these bosses mistake a challenge of skill for a test of endurance and the like which in turn, make them annoying.
Even if they weren't always the focus like Liu Kang or Shao Kahn, these characters still had some good moments throughout the series.
There's always room for more and these characters deserve their shot.
From the lowest of lows to the bloodiest of highs - see how all the main titles stack up in retrospect.
Throughout its convoluted history, Mortal Kombat has had a number of awesome points.
They don't seem all that bad today but these moments seriously scared us back in the day.
Adding insult to injury is all in a day's work for these bosses.
At times, you'll be asking whether these bosses are really worth the effort.
These screeches and screams still make us terrified!