Tekken is the first game in the series of the same name.
Tekken is a hand-to-hand fighting game, much like Street Fighter and Mortal Kombat. Unlike those games, Tekken offers a bigger variety of different moves that would only grow with each new Tekken game. With the character the player picks, they will go through a variety of stages to fight other characters. Eventually, the player will reach a sub-boss. Whoever the sub-boss is, depends on the character the player picks. After the player beats the sub-boss, they will reach the final boss, who is always Heihachi Mishima, unless the player picks Heihachi himself. In that case, the final boss will be Devil.