4b Nf6xe4?

I learned this move a month or so ago in

1. e4 e5 2. Ng1f3 Ng8f6 3. Nb1c3 Nb8c6 4. Bf1c4 Nf6xe4

and I've had varying levels of success (as black), but of course if white sacs the bishop, this leaves me with a king out of position, which is obviously quite difficult to defend against initially and takes my rook out of commission for a good twenty moves, in essence I'm a rook down after this.

Is there a better response as black rather than Nf6xe4, as sexy as it looks?

Originally posted by Mad Mac MacMad
I learned this move a month or so ago in

1. e4 e5 2. Ng1f3 Ng8f6 3. Nb1c3 Nb8c6 4. Bf1c4 Nf6xe4

and I've had varying levels of success (as black), but of course if white sacs the bishop, this leaves me with a king out of position, which is obviously quite difficult to defend against initially and takes my rook out of commission for a good twent ...[text shortened]... wn after this.

Is there a better response as black rather than Nf6xe4, as sexy as it looks?

After 5 Bxf7+..Kxf7 6.Nxe4..d5 as black you force white to move the N again and again while continuing to develop your pieces. If your king goes to g8, then h6 will give a little luft space and let the rook out after the Bf8 is developed. Black gets the f file and discourages the white king from castling kingside, and a strong initiative.

Originally posted by Exuma
After 5 Bxf7+..Kxf7 6.Nxe4..d5 as black you force white to move the N again and again while continuing to develop your pieces. If your king goes to g8, then h6 will give a little luft space and let the rook out after the Bf8 is developed. Black gets the f file and discourages the white king from castling kingside, and a strong initiative.

http://www.redhotpawn.com/gamesexplorer/index.php?movelist=e2e4e7e5g1f3b8c6b1c3g8f6f1c4f6e4c4f7e8f7c3e4d7d5e4g5f7g8d2d3h7h6g5h3c8g4c2c3d8f6&flip=0&co=-&u=-1&c=GM

Here is a game won by black...

Here's another (slightly different move order in the opening, but the same thing)
Game 3691102