Kind of different, but there is some interesting stickering for sealed Canadian games. For example, sealed copies of the Canadian release of NHL All-Star Hockey have an added UPC sticker:
But here is already a UPC on one of the sides of the box, so adding one is unnecessary
Here is a different Canadian release sealed:
Notice how it has that "Sega of Canada" sticker. That's really odd to me. Right below it is the original UPC printed on the artwork. BUT, what I find most interesting is the first 5 digits of the UPC. 10086 was used for US releases, whereas 69044 was used for Canadian releases. But once I opened that game, underneath was a proper Canadian barcode (69044 01216). So the sticker on top was correct because it ends in the same 01216, but its just odd and unnecessary.
Those are the only two sealed Canadian games I've found though, and the first (the cardboard NHL one) is kind of different. Definitely Canadian but released not quite in the same time period as all of the conventional Canadian releases.
Not quite what you asked, but figured I'd throw it out there anyway