In MK X, you can also use X-Ray special moves. Thanks to this, you can observe, for several seconds, what happens to the opponent’s body, when you deal your blows. To perform X-Ray, you need to fill up three Super Meter bars, which are then used up immediately after you launch the move. You perform X-Ray move by pressing Stance change + Block simultaneously. Each character has a unique X-Ray animation, which cannot be interrupted. If you manage to land X-Ray, you can expect to deal quite a damage, but you need to remember that X-Ray can be blocked or dodged with a jump. Not only does this leave you exposed to attacks, but also with your Super Meter empty, which may prove painful.
When you have 3 bars of Super Meter, you can execute a high-damaging X-Ray move by pressing Flip Stance + Block (L2 + R2 / LT + RT).
Video guide about how to do xray on mortal kombat xl ps4