Ending was Kazuya killing Heihachi once and for all, as the devil gene made him survive things Heihachi couldn't. Kazuya's mother was also in the game, though I can't remember her exact story point, perhaps it was just flashbacks and explanations. They can of course continue if they want, it's not like the story is that great, but they promoted the game as the conclusion to the Mishima story line and I don't think they've done that previously.
Neat, thanks.
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Not changing this sig until I decide to change this sig. Started: July 6, 2005