Tekken Force Mode is a side game first introduced in Tekken 3 and later reappeared in Tekken 4. The player selects a character and goes through stages fighting Tekken Force members. The stages end with a boss being one of the fighters in the games roster. The side game was replaced by Devil Within in Tekken 5 and Scenario Campaign in Tekken 6.
Tekken 3 Edit
Tekken Force was a surprise bonus mode in Tekken 3 like Tekken Ball. The player takes a chosen character through a side scrolling mini-game, fighting against the Tekken Force in four stages. At the end of each stage is a boss character from the playable roster. The boss the player fights against in each stage depends on which character the player chose, with the exception of the fourth stage where the boss is Heihachi Mishima. If the player chooses Mokujin however, every boss including the fourth stage boss will be Mokujin.
To unlock new player defeat all four stages and you will win each key per four stages, after defeating, they will not give you the key, they will ask you to defeat the last stage (Under the Ground). There you will fight with Doctor Boskonovitch and you have to defeat this player to unlock and remember, it will be very hard to defeat this player. Once defeated it will not appear anymore.
Tekken 4 Edit
Military Installation Edit
This stage is an Laboratory with big steel doors and computers. The boss of this stage is Combot.
Temple Ruins Edit
This stage is a long and very dark path that seems to be inside of some kind of temple, because there are big pillars everywhere. After a long journey, the player reaches stairs and a door. When the player goes through the door, he/she faces Kazuya Mishima.
Mishima Fortress Edit
This stage is inside a building that looks like Hon-Maru, much like the stage from Tekken 3 with the same name. The walls in this stage are very easy to break and there are Tekken Force fighters meditating in many rooms. Player also goes to outside where the player faces some of the deadliest Tekken Force ninjas. The player goes to a different building from the outside and finally reaches a room, where the player faces Heihachi Mishima, like in Tekken 3.