Topic: Biker Mice From Mars, Nintendo DS - Thin, Waxy Artwork?

A few years ago I purchased a "complete" copy of Biker Mice From Mars for the Nintendo DS.
When I received it I noticed that the cover art & manual were not the usual paper stock but were thinner
& had a 'wax paper' feel to them. I've checked pictures of other copies online and most, from what I can tell look like what you'd expect from normal DS paper stock but a few also appear to have that cheaper waxy look like mine.
Anyone else have this type of paperwork with their copy or did I buy a copy with repro art? Thanks!

Mmm... No, sorry, most of the DS games I buy are either loose or have printer paper manuals and cover art. But that's very unusual! I don't think DS game manuals or cover art have wax paper.