It's not mine, but I know there are some around desperately looking for these:
http://www.ebay.com/itm/NES-Nintendo-Mega-Man-Extremely-Rare-5-Screw-Cartridge-VHTF-Game-Only-No-Reserve-/171087837611?pt=Video_Games_Games&hash=item27d5a139ab
Anyone know how much it's worth? They're so rare they hardly ever go on sale. The 5 screw variant of mike tyson's punch out is just about as rare and one of those with a messed up label sold for about $200 4 years ago.