I don't know, but what do you play against Bxf7? The traxler is dangerous for white, but he doesn't have to play Nxf7.
Two Knights Defence 4...Bc5

I like Bxf7. Black will probably have some compensation for the pawn (as in most Two Knights Defence lines), but I'm happy to try and keep it.
There is a lot of analysis of your line on the web. I think it's actually a forced win for white, not black, but I don't know it well.

f you would like to see the thoughts of a correspondence master on this subject, see http://www.ebay.com/itm/Two-Knights-A-Chess-Killing-Machine-with-an-Emphasis-on-4-Ng5-/271319251507?ssPageName=ADME:L:LCA:US:1123

f you would like to see the thoughts of a correspondence master on this subject, see http://www.ebay.com/itm/Two-Knights-A-Chess-Killing-Machine-with-an-Emphasis-on-4-Ng5-/271319251507?ssPageName=ADME:L:LCA:US:1123
Dude you have spammed this link on every Two Knights Defense thread. Advertising much?
What do you think about this position? Can black force win here?