MOTW (euro) is not part of the "Classic" series of inserts. IT is essentially one of the few OG SNK euro inserts that used an alternative backround that was a sold color vs the standard euro grey/gray. The main euro home cart releases that did this were AOF3 (white), KOF 96 (red), MOTW (Yellow) & I believe a few others but those were the big 3. Post OG SNK (meaning SNK Playmore) the euro version of Sengoku 3 did this with the black w/ multicolor backround.
This statement strikes me as a bit odd. There are many counterfeit inserts out there for many titles, howver, with MOTW (and I believe some other titles) there are near 1 to 1 SNK licensed proffesionaly made inserts that were made by the compant "Pix-n-Love" for their modern day releases that came in the re-pop snap lock cases. Those are not counterfeits, they are legit second run goods.
I have the slug 4 and the 3 KOF classic inserts. I don’t even remember how I came about getting them. I think some guy who I bought some games off from this forum just threw them in lol. I don’t even own Slug 4 and I have the cartridge label for that one too. None have them have ever even seen an SNK box, they are completely flat.