I never saw it in video games but it was a common practice to put a hole(s) in the upc of an item that's not being sold at full value, typically on a secondary market. 100 copies of a cd are made, retailers order 80. Some places destroy the left-over 20 %, some send it to secondary channels. The originator isn't getting full value for the item so they're marking it. It keeps the retail value higher, and incentivizes those who do not wait for something to hit sub retail markets, as well as keeps retailers happy that the item they're paying high wholesale for isn't going to the secondary markets unscathed for pennies on the dollar. Designer jeans get the label taken off, or blacked out, cigars get a different band, or are sold in bundles instead of in their cigar boxes, media sometimes got a hole in the upc. Many manufacturers deal with secondary markets when it comes to returned, overstock, new-old-stock, etc. often distinguishing the product in some way. I've also heard tale that some manufacturers do this on promotional and evaluational materials, on a very rare occasion, making them more collectable.