Now, I'm pretty sure this is a dumb suggestion, or if this does exist in the game, this came out of nowhere after seeing one little thing about WWE. And I was wondering, you know how people are classifed as heavywieghts and lightweights depending on how much they weigh? Well I'm not saying lets classify each mk character as a heavyweight, but what if their weight depended on how much damage they recieve. Like this for example:

Shao Kahn is a very strong, boss-like character, so when he recieves damage let's say from Sub-Zero, and the damage from a punch is like 4 pts. Hitting against Kahn it gets reduced by 2. So basically Kahn is recieving 2 pts of damage from Sub-Zero. But if Sub-Zero punches someone like Scorpion, Scorpion recieves the 4 pts. And if Sub-Zero punches a female, lets say, Frost, the damage she gets is 6. (adding 2 more pts) because, yes the girls are tend to be weaker.

Just listing some of the charcters not all of them

So you have your strong characters: Kahn, Onaga, Moloch, Goro, Kintaro, Sheeva

Average: sub-zero, scorpion, kenshi, shang tsung

and weak - usually all the females except for sheeva.

basically if Mortal Kombat had something like this featured in the game, it would sort of make the game realistic in a way... but if they already have this in the game, then i must be blind, but if not, hey, it's a suggestion for the next game.