Star Fox 2??

[Protoman]

http://www.ebay.com/itm/Nintendo-SNES-Super-Famicom-SFC-Star-Fox-2-Rare-game-Starfox-/181174426975?pt=Video_Games_Games&hash=item2a2ed65d5f

This must be a modified, hack-type of cart... right?

[L___E___T]

It's a repro.  Looks like the regular Starfox 2 to me.

[FamicomLover]

There is a StarFox 2 SNES prototype.

http://www.youtube.com/watch?v=fVBDnqHQsaM

[GohanX]

Yeah, the prototype for the unreleased game was leaked a while back, and people are making repros by using Super FX2 games and replacing the rom chips.

The game is kinda cool, but there's a good reason it wasn't released.