Official rules: https://secure-sony....ficialRules.pdf
Free online codes are to be handed out from October 29 through November 10.
You can also get a code by buying a $5 box, starting September 26.
Here's to hoping the odds will be as good as Burger King's Wii U giveaway last year. A bunch of CAGs, as well as my best friend, won that via free codes.
UPDATE: The free online code is up.
You can type this in once per day for a free entry:
You can text it to 22854, and you can also enter online here: http://winps4.prizelogic.com