Best Tekken ever. Period.
Gameplay: perfection (at least for the time)
Graphics: era's breakthrough. It was probably the best looking game, when it came out.
Characters: from the old friends of Paul, Nina, ecc, we get to play as chinese martial arts girl Xiaoyu, the great capoerista Eddy and Kazuya's son Jin, among others. All of them are fun to learn, except maybe Gon, which is just stupid and pointless.
The game has an amazing retro atmosphere. You get to fight in beaches, courtyard of a laboratory, street alley, mexican temple, ecc. The final boss, Ogre, is a classic, although Heihachi, who is the sub-boss, is the toughest one to defeat. As I said, there's not much to say. This game is a classic. 10/10