sentences:  There is also a flashback of Jigsaw giving a less menacing, early version of Billy to Jill Tuck as a gift for their unborn son Gideon.An interview with Tobin Bell revealed that this was the beginning of a storyline concerning Billy's origins, as that of his tricycle, to be explored in future "Saw" films.Billy appears in the opening sequence to tell Seth Baxter the rules of his game.