Looking for about $40 shipped (to the US and Canada; $47 anywhere else) each out of these, except as noted. Of course, buy more than one and I'll give you a shipping discount. All are complete and in great shape unless otherwise noted. All are of the generic box variety (the ones where they used the cart labels on the boxes). The list:

Auto-Upturn
Challenge of the Dragon (dented across the bottom of the back of the box) - $37 shipped
Cosmo Cop (actually says Lightgun Game 2-in-1)
Gaiapolis (dented across the bottom of the back of the box) - $37 shipped
The Great Wall
Honey Peach
Magic Cube
Magical Mathematics
Master Chu and the Drunkard Hu
Metal Fighter
Millionaire
Poker III (5-in-1)
Q Boy (moderate ding on the top left corner of the box) - $37 shipped
Super Cartridge Version 1 (4-in-1)
Tasac

Or, if you wanted all 15, I'd sell them all for $500 + shipping ($13 to the US, $23 to Canada, $40 to the rest of the world). Questions, comments, offers, you know what to do :) .

Pics available upon request. All are the standard 72-pin Sachen NES games. If I don't get any decent hits here within the next day or two, to eBay they go.  Need feedback?  My username is the same everywhere I go (tradegamesnow.com, Digital Press, NintendoAge, GameTZ, eBay, etc.), so feel free to have a look :) .

nice stuff you got there, i know some will be interested. Good luck to you. ;)

Thanks, bro :) .