Okay, it's been two days that I've been stuck on this one part. After you find Shang Tsung, you go back to Kenshi and he teaches you his moves. Well, I whizzed by them until I got to the move "Kinetic Slam" where you press BACK, DOWN, BACK + X. I press those buttons perfectly EVERY time but I always end up doing a rising spade punch or some move where he pushes forward and nothing else. Did anyone else have trouble with this?!