Tekken will fuk your life up. The game is the epitomy of the phrase "easy to learn, difficult to master." Virtua Fighter is a great game in it's own right. As is any Street Fighter. But Tekken is the pinnacle of fighting games. The newest Tekken, Tekken 4, is however a shallow and hollow version of the greatest fighting game ever, Tekken Tag Tournament.
I got hooked at Tekken 2. Good thing Tekken 4 is a piece of crap, otherwise i would have never been able to get away from the game.