The console version adds two characters, both palette swaps of existing ones.

The returning characters include a couple ones who did not make the cut in the 19-year time skip between Tekken 2 and Tekken 3. The arcade version features a total of 23 characters, consisting of 17 returning and 6 new ones. A new Story mode in the home version unlocks cutscenes when played, in contrast to previous installments in which such cutscenes were unlocked from playing the Arcade mode. In the minigame it is discovered that the Tekken Force possesses different ranks in the organization, evident in different amounts of stamina, strength, and skill. The player can pick up health and power-ups while fighting waves of enemies. Similar to the previous minigame found in Tekken 3, it presents the player with an over-the-shoulder perspective as they fight wave upon wave of Heihachi's Tekken Force through four stages, eventually facing Heihachi himself. The console version of Tekken 4 includes a beat 'em up minigame available from the outset, called Tekken Force. Finally, the game introduced a brand new graphics system, that featured increased lighting, dynamic physics, and smoother surfaces. The game engine had been tweaked to be more focused on the environment, causing the characters to move more slowly and fluidly than in Tekken Tag Tournament. These 'environmental hazards' in turn allowed players to juggle opponents for consecutive combos and allowed the designers to implement a 'switch maneuver', which let players escape from cornering and turn the tide in their favor. For the first time, it allowed players to maneuver around an arena interacting with walls and other obstacles for extra damage. Tekken 4 introduced significant new gameplay changes from the previous games in the series. Its sequel, Tekken 5, was released in 2004. However in recent years, Tekken 4 has been widely praised for its innovation, atmosphere and attention to detail. Community reception was generally negative, with competitive players pointing out its balancing and gameplay issues. Tekken 4 received generally favorable reviews. The game's story reveals that Kazuya has been revived following his death 20 years prior and enters the King of Iron Fist Tournament 4 to take back the Mishima Zaibatsu. There are up to twenty-three characters to choose from, including six newcomers. The game also harbored many gameplay revisions, such as the series-unique ability for the player to move about before the round begins and the introduction of walled stages.

Placing distinction on the plot in the console version, the tone of Tekken 4 was noticeably darker than other installments of the series. It was released on arcades in 2001, and on the PlayStation 2 in 2002.

Tekken 4 ( 鉄拳4) is a fighting game developed and published by Namco as the fourth main and fifth installment in the Tekken series, following the release of the non-canon titled Tekken Tag Tournament in 1999.

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