MORTAL KOMBAT and all related characters and elements are trademarks of and © Warner Bros. Entertainment Inc. (s20)
This was done for the background of Shaolin Trap Dungeon. Some time through the match, this giant weighted trap is triggered and crashes through the structure below.
The event is simulated in RayFire, a 3DS Max Plugin, and then brought into Maya to get rigged. Generally the simulation gets me 90% of the way there and then a lot of cleanup is done by hand.