Proto

I've just visited the 'NEO•GEO Proto Cartridges' page and found out an interesting point: SNK is well known for its '1 vs. 1' fighting games, all the protos but one are non-'1 vs. 1' fighting games. Is there any possibilities that SNK never came out with those games because they wanted to focus on the '1 vs. 1' fighting games?
A first answer could be 'no, look at soccer games, golf games, etc.' but I ask you to think twice to the large amount of fighting games SNK released (SS serie, KOF, AOF, etc.) Maybe they relesed non-fighting games just because they were too good to remain unreleased... <IMG SRC="smilies/smirk.gif" border="0"> What do you all think?

I think that the protos weren't up to the quality standard...that's it. <IMG SRC="smilies/cool.gif" border="0">

I think there could be some truth to that theory. Having played Zupapa, its a fine game that they apparently shelved for while.

Finally a Zupapa! review coming soon!

I doubt it's worth $400 though...