Will the Perreux Never Die?

Black to play.

I have lately begun playing the Two Knights Defense as Black more often than I do as White, and was surprised by how often I've had to face the Perreux Variation (1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 5.Ng5). I suppose it is what I deserve for having popularized it with my website.... I now think the line basically stinks, but it is certainly hard to prove in blitz games, where sharp tactics, a good memory for theory, and a bit of nerve can change a bad opening into a winning middlegame. My recent game with "joesixpack" was more proof, however, that the Perreux should be laid to rest...