

On July 27, 2017, all the characters exclusive to the console version are added to the arcade version. Master Raven, a new character, was also announced to be added to the Septemupdate. Bob was then announced and became playable during the update on August 9, 2016. On February 12, 2016, the Location Test for this update was launched, to observe the new mechanics of the game, as well as the two characters recently announced: Akuma and Nina Williams. In addition to these additions, some have been enhanced with new brightness and changes in the décor. The characters have new intros and interact with objects (ex: Lili is holding a cup of tea, Asuka arrives by bike, Bryan is swinging a beam on the screen). Indeed, the fans had long called for new outfits for the characters, some of whom had the same since Tekken 5.

This update also reveals new default outfits for many characters such as Asuka Kazama, Sergei Dragunov, Bryan Fury, Lili and Ling Xiaoyu.

Well aware that the tournament is just a trap designed to lure him out, Kazuya nevertheless enters - it is his chance to defeat Heihachi.The character Akuma from the universe of Street Fighter is unveiled and will be the first new playable character of this version, confirming that the universe of Tekken and Street Fighter coincide.

The champion who manages to defeat Heihachi at the end of the Tournament would inherit the Mishima Zaibatsu. The Mishima Zaibatsu announced The King of Iron Fist Tournament 4 and placed the massive financial empire as the top prize. Tekken 4 also see the return of Kazuya, who was killed by his father Heihachi 20 years ago has been resurrected in G Corporation's research facility. From 10 initial characters to a total of 20. The game still keeps the same basics of the other versions of the game including a initial set of characters be selectable and the rest being time released. Unlike the previous version of the game, Tekken 4 allows the players more freedom in movement around the arena. Many improvements have been made for this version both graphically and gameplay wise, including the introduction of players being able to use the walls and other obstacles for both offensive and defensive moves. The game centers around the 4th King of Iron Fist Tournament. The Tekken series returns for a fifth installment. Heihachi's goal was to create a new life form by splicing Ogre's genome with his own. Not willing to give up, Heihachi ordered his researchers to collect blood samples, skin tissue, and hoof fragments left behind by Ogre (or known as True Ogre in its true manifestation) in order to conduct genetic experiments. Two years ago, Heihachi failed to capture Ogre.
