Im a fan of strange and obscure openings, so just wondering bout this opening, whether it is playable or just plain stupid. Thanks for your comments.

Good, Busch-Gass Gambit

After 4. Nxc6, either 4...dc   5. Qxd8  Kxd8  6. d4,   or....

         4.  Nxc6 bc  5. d4  is bad for Black.  White is up a Pawn with a full center and no weaknesses.  At least that's how I see it.

No -- I thought Black's d-pawn was clear.  4.  Nxc6  dc  5. Be2 seems safe, though. Still up a pawn and Black doesn't seem to have a concrete threat?