revision preference src: Jack, unlike Jack-2, Gun Jack and Prototype Jack, did not appear in Tekken Tag Tournament making him the only Jack robot (before Jack-5) not to appear in more than one game. <SEP> tgt: The Jack series robots also appear in " Tekken Tag Tournament " (Jack-2, Gun Jack, and Prototype Jack) and " Tekken Tag Tournament 2 " (Jack-6 and Prototype Jack).