Jax's Alternate Costume - Once you enter Arctika, find an invisible chest on the left. MK had a rich story line as well. Mortal Kombat Mobile 5. Ermac's Alternate Costume Found in a chest by the left wall in the room where you get attacked by the Red Commandos for the second time. Motaro's Alternate Costume: After the third training obelisk, during the time you must gather crystals go to the left side of this area and open the chest there.
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