They should be posible on console , but most of this combos are exclusive to the n64 version of mk trilogy .
PSX its more similar to arcade .
But yeah i use mostly savestates and in some combos slowdown :
Like that shang combo at 3:28
But in snes all the combos shown are posible on console
(meaning without slowdown ) but very hard
Here is a combo the its imposible on console , i use keyboard and slowdown :
https://www.youtube.com/watch?v=saKYv5cmsBo