There are a LOT more code items than that. Like the Cryptid Batpack from the sneak peek, ther very first code item. Can't remember that one though since it's so old.
There's a full list of code items on my site if you need reference.
EDIT: The Ghostfreak mask and tentacles aren't beta. Those two are from Halloween 2010.
Only the Cryptid Batpack and Alien X Mask are beta items. Though the Alien X Mask wasn't a code and I think you had to be both a beta tester and UA subscriber to get it. I don't know cause I don't have it.
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