NEO GEO AES prototypes?

I have been collecting neo geo aes stuff for about 2 years and my collection is coming along nicely. But I wondered if any games have actually surfaced which did not released? Secondly are there any prototypes out there which other forum members own?

 

Try Neo-geo.com they might have something nobody has.

 

Already tried, appears nothing!

 

There's a few out there that people have not seen yet, yes.

 

Can you expand a little more on this, it all sounds very mysterious!!

 

http://www.neogeoprotos.com/

 

Thanks for that!

 

I own Ghostlop.

Actually did a small writeup on Racketboy - http://www.racketboy.com/retro/snkneo-geo/2009/02/the-rarest-and-most-valuable-neo-geo-games.html

 

I've seen about 4 or 5 prototypes in AES format, and know of about 4 in MVS format.

TonK, I believe your Ghostlop was an MVS cart, no? Did it have a label, and if so, was it English or Japanese? Do your PCBs have those SNK prototype Eprom stickers?