Well, here’s a slippery slope. I already have a complete run of all the regular Ultraverse issues but I’ve known for a while that there were two versions of most of the earlier comics. The only difference is a UPC code on the front (there were also price differences on some of the polybagged issues that had UPC codes … I’m also working on a list of those).
I haven’t been making much of an effort to collect those UPC variants. I think (please correct me if I’m wrong) that the UPC code means that book was sold somewhere besides a comic shop (book store, grocery store, etc.). The ones without the UPC code are more common for that reason, since most collectors bought their books from comic shops.
Anyway, a couple of weeks ago my local comic shop closed. After 16 years of getting my new books there, I had to find a new place. There are a few around town and I finally settled on one downtown near my office. After setting up a pull list I went through their back issues and found a few Ultraverse books with UPC codes. I bought them.
So, therefore, I am now officially collecting them … at least that’s where my typically OCD response will lead. These are my first five. I might have some more stored away, but I’ll have to pull some boxes out of the attic to check. I paid a buck each for these, a lot more than I would usually pay for a common UV book, but what the hell …

I spent a month scanning through photos on eBay (Bruce helped) to make a list of which books had UPC variants. This is just the list of books that were visually verified.
Break-Thru: 1, 2
Exiles: 1, 2, 3, 4
Firearm: 1, 2, 3, 4, 5, 6, 7, 12
Freex: 1, 2, 3, 4, 7, 9
Hardcase: 1, 2, 3, 4, 8
Mantra: 1, 2, 3, 4, 6, 7, 9, 11, 14, 15
Night Man: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13
Prime: 1, 2, 4, 7, 8, 9, 10, 13, 14, 15, Annual 1
Prototype: 1, 2, 3, 6, 7, 10
Rune: 1, 2, 4
Sludge: 1, 3, 4, 5, 9
Solitaire: 1, 8, 9, 11
Solution: 1, 2, 3, 4, 6
Strangers: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17
Ultraforce: 0, 1, 2
Warstrike: 1
Wrath: 1
I don’t think that is anywhere near a complete list. My hunch is that every single book from the first year-and-a-half or so of the Ultraverse has a UPC variant. Later on practically all of the books had the UPC code box, so that put an end to this silliness.
Ah well, it will give me something to look for.