There codes you literally enter in game. They aren't PSN/XBLA codes. There little 6 digit codes anyone can use. I feel so used. I guess that will teach me. I'm still happy to support the game and that I get the $10 credit but don't be surprised when you get an email with 6 numbers in it as a code.
There's lockers in the game where you enter these codes from Gamestop and Amazon that were our "pre-order" codes to get the extra weapons. Gamestops code is 171678 for everyone. Amazon hasn't sent out there's yet but I just found this online and thought I'd share the information now.
Well, most pre-order incentives usually suck, they're only attractive to collectors and "completionists" (like myself); people who have a little tick in the back of their head when they realize they don't have 'all the stuffs'. It was kinda neat around 5 years ago, but now it's starting to get silly. Mass Effect 3 pre-order incentives spread all over the place was just silly and a tad offensive.
They need start offering coffee mugs, shirts, posters, books, grab-bag style goodies themed from the game. I mean, you should get physical items if you're going retail, in my opinion. Just a thought.
(Not complaining, I'm satisfied with purchase, just making a point.)