Jack, sometimes capitalized as JACK, is the name of a series of robots that are upgraded in each main installment in the Tekken series of fighting games. There has been a playable Jack model in every main Tekken game, except for Tekken 4. Prototype Jack is seen as separate to the main line.
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.JPG "Jack (Tekken).JPG (144 KB)")
Tekken (1994)
.JPG "Jack-2 (Tekken 2).JPG (70 KB)")
Tekken 2 (1995)
.JPG "Gun Jack (Tekken 3).JPG (85 KB)")
Tekken 3 (1997)