Tekken Tag Tournament, released between Tekken 3 and Tekken 4, is not a part of the Tekken storyline. Tekken 5 saw the return of both walled and infinite arenas, with the fluid mobility of Tekken 4 being toned down to appease many players who felt it made the game more focused on evasion. This differed from previous Tekken games, where all of the arenas were level and contained no boundaries, meaning the player could walk forward or backward without limit.
Tekken 4 gave characters even greater mobility by adding true 3D movement while simultaneously including geometrically complex arenas with unleveled ground, obstacles, and walls.
Also, Tekken 3 reduced recovery time after being knocked down then previous games and each game afterwards includes rolls to recover instantly after hitting the ground allowing the player to get back into the fight instead of pounding buttons. Tekken 3 introduced the ability to move into the foreground or away from the background, commonly referred to as " sidestepping".
Each iteration was improved upon both graphically and technically. Other trademarks include throw escapes and starting from Tekken 2, autoblock. The Tekken series use separate buttons for right and left limbs, resulting in four buttons.