"Tekken 5" includes a beat 'em up minigame in direct lineage to the "Tekken Force" modes in "Tekken 3" and "Tekken 4" called "Devil Within". This minigame follows the adventures of Jin Kazama as he searches the G Corporation in search for information on his missing mother and other answers. Being somewhat story oriented, the player is not permitted to use their own choice of characters like previous iterations. The game also uses a limited button system, incorporating a Block and Jump button as well as sizing down the attack buttons to simple "Punch" and "Kick" buttons (though, some of Jin's fighting special moves can still be performed such as his Demon's Paw). Along with fighting various Jack models in the mini-game, the player must pursue minor key quests to proceed. This mode is one of the two ways to unlock the playable version of Jin's Devil incarnation, Devil Jin.