Gal*Gun 2 is finally out in North America and it should be a time for PQube, Inti Creates and Gal* Gun fans to rejoice. However, beneath the joyous covers, there might be some issues.

Some physical copy owners of Gal*Gun2 are reporting a misprint in the inner cover. Instead of showing Gal*Gun 2 images, the inner cover is taken over by a greyscale image from Wild Guns Reloaded. It is not know how the image made it into the back cover.

@GoNintendoTweet Well, they got the ratings right this time for Gal*Gun 2, but there's something about that inner sleeve… pic.twitter.com/j1dftHrBnt

— Yanya (@banballow) April 24, 2018

In any case, this is definitely something unique, and with anything unique, you should be able to fetch a high price for it on eBay.
Source: source