Michael Jackson Moonwalker "Coming Soon"
https://imgur.com/nvaRUKT...
Video of Moonwalker:
James Buster Douglas Boxing
https://imgur.com/q2lpmOp...
Golden Axe Warrior
https://imgur.com/Jy5pzUk...
Battle Out Run
https://imgur.com/2DM5F7a...
Gain Ground
https://imgur.com/fxG6buD...
Also this Columns was found with the others:
https://imgur.com/IGVWFe8...
A friend of mine was doing some rounds visiting some local game stores I believe in the San Jose area when an old lady in front of him had just sold these to the store owner. He immediately asked to purchase them and then messaged me online asking if they were what he thought they were. I confirmed they were indeed prototypes! The Michael Jackson Moonwalker Coming Soon thing appears to be undumped anywhere online as well. One heck of a find in the wild!
I asked him if he'd be keeping them for his collection and he didn't think so. He offered them to be me, but I don't really collect Sega Master prototypes myself. If anyone is interested in them and wants to get in contact with him, let me know!