Truly iron fists for The King of the Iron Fists Tournament. There isn't one Jack, but a series of these Russian robots: Jack, Jack-2, Jack-4, Jack-5, Jack-6, Gun Jack and Prototype Jack. A package deal!
So why do we love him? His blood is plutonium* and his eye glow. What's not to love? He's a Russian Robot with a mohawk! New Tekken games bring a new Jack, keeping the character fresh, and the new Jacks pack a punch, one upgrade at a time.
*Make that usually plutonium.