game play

As with many fighting games, players choose a character from a lineup, and engage in hand-to-hand combat with an opponent. It is primarily a competitive two player series, but a human player can fight an AI-controlled character for practice, amusement, or to advance the game's story.
In the original Tekken game, the characters would fight on arenas. The name of the location was displayed in the bottom right corner of the screen. The locations included Angkor Wat, Szechwan, Monument Valley, Chicago, Kyoto, Fiji, Windermere, Venezia, Acropolis, King George Island, and Chiba Marine Stadium. Subsequent Tekken games do not have the names of real locations displayed in-game during fights.
Tekken differs from other hand-to-hand fighting games in some ways. Traditional fighting games are usually played with buttons which correspond to the strength of the attack, such as strong punch or weak kick. Tekken, however, dedicates a button to each limb of the fighter, making learning special attacks more of an intuitive process. The player could watch the animation on screen and figure out the appropriate command (if the character kicks low with their right leg, the move is likely to be executed by pressing down and right kick, or a similar variation).

http://en.wikipedia.org/wiki/Tekken