Hmm, I could be thinking of a different game, but I think that you were able to get DW II for free with a subscription of Nintendo Power in 1990. Together with this free copy of DW II you would also get a special map/poster that was never released with the retail copy of DW II. I read this somewhere not too long ago...was just trying to find out where, but can't seem to find it anymore....I'm quite sure they were talking about DW II, though, and seeing how that extra poster of yours doesn't fit in the box and I am lacking it in my complete copy of DW II, it all makes sense
-Speedy