In Single Player/Ko-Op:
Available in Versus Mode Only
In Versus Mode Find the Red Yin Yang in The Soul Tomb. In one of the rooms on the red icon path, lower right angled room on the map, you will find it is a two floored room. Get on the top level by climbing the wall. On your right will be a statue you can smash with the Fist of Ruin, smash it to reveal a Red Yin Yang on the floor (not the one we want) and a pathway along the wall behind the statue. Perform a few long and short platform jumps to reach a platform along side the exit door with a Red Yin Yang that unlocks Baraka in Versus Mode.