actually i just found this, apparently you just need to get lucky roulette and get Tekken 6 Hint: Rage Effects The following Rage Effects can be unlocked by performing the actions below: * Black Rage - 1x Roulette * White Rage - 2x Roulette * Yellow Rage - 3x Roulette * Lightning Rage - 4x Roulette * Ice Rage - 5x Roulette * Fire Rage - 6x Roulette