Released in July 2001.
The title of this game translates from Japanese as 'Iron Fist 4'.
New to the series is the ring-based play system... i.e : the characters play within a ring-looking stage. Player can push his opponent to a wall... and then beat him while he's stuck between the wall and the player.
The supercharge (LP+RP+LK+RK) which existed in previous games has been removed in this game... it was quiet useful for making your attacks register as counter hits. Though it has been put again in "Tekken 5
", the latest sequel to the series.
Registering juggles got harder in Tekken 4 due to the extreme reality put into the game. In previous games you could create long juggles in which some time the character would get hit even if he is far away from you and in reality you would have missed him. In Tekken 4, this reality made the juggling game difficult but more life-like.
Tekken 4's 'Airport' stage is heavily reminiscent of the common airport stages from the "The King of Fighters
The character Steve Fox was originally going to be called Dean Earwicker. A few early pictures of this character actually had the name printed. The name Dean Earwicker later appeared on the Sony PS2 version as a Tekken Force enemy.
Scitron Digital Content released a 2 CD limited-edition soundtrack album for this game (Tekken 4 original sound tracks - SCDC-00181~182) on 22/05/2002.