All Trophies popped but...
So I after knowing about the ps3/vita game motorstorm Rc and how you could get the platinum on one system and turn on the other and watch all the trophies pop I decided to try it with this game. To my surprise all the trophies popped including tbe platinum. However I tried it on an account that doesnt have the platinum on my 2nd vita and no trophies I got on that account unlocked. This means if you platted mk9 on your ps3, buy it for the vita and say hello to a 3min platinum!