Edit: AHA!!! I found the solution
HERE on how to gain this achevement. You can read how to do it below:
Requirements to become Mastery of a Fighter include:
100 Wins / Victories
150 X-Ray
100 ~alities (Any form of finishing move)
10,000 Pints of Blood Spilled
24 hours play time with that char
For this achievement, you only need 1 Character to get all these stats.
You can check the progress in the Nekropolis in the Krypt (Which unlocks after purchasing 10-15 tombs). After unlocking it, you can access it right from the menu without going to the Krypt. Once in the Nekropolis, select your character and choose the View Stats option to see your progress.
Some shortcuts to speed up the progress include:
24 hour playtime: Plug in a Wired controller, go into Team Battle Training, and select 2 chars you want to gain time with. Go to sleep / work / outside, come back and the timer will keep on running. Cheap, but effective.
All the stats carry over from Online / Offline modes (so 20 wins online with Scorpion + 80 Arcade wins will unlock that portion of the achievement). The only mode that doesnt count towards these achievements is the Tutorials (including Fatality Tutorial) and the Tower Challenge (Wins don't count, everything else counts though).
MK Khronology: 58.49% complete...
