You need to summon Sub-Zero's 1st Set of Character Towers for 25000 Koins. Finish it then Summon his 2nd Set of Character Towers for 50000 Koins. After you summon it, you will need to do 10 Fatalites WITH Sub-Zero to access the 4th Tower.

Then after you've done the 4th tower you will need to do 10 Brutalities with Sub-Zero to access the final Tower. After you do all the Towers you will get the Falling to pieces Brutality among other cool stuff.

IMPORTANT - The Fatalities and Brutalities won't count until you have summoned the 2nd Set of Sub-Zero Towers for 50000. So you can't do them in advance. Good thing is these towers have NO Time Limit so you can pace yourself.

To do the brutality simply do an ice ball on your opponent with very little health then you must be jump distance or further, then do another ice ball on frozen opponent on final hit.


MORTAL KOMBAT 11
https://store.playstation.com/#!/en-au/tid=CUSA11395_00