Jerome Gambit: Long-Distance Hypnosis?

In the following quick game White benefits from his opponent's unfamiliarity with the Jerome Gambit, which leads, at first, to uncertain play, and then to apparent dizziness and a game-ending blunder by the second player.

Unless, of course, Bill Wall has developed some kind of long-distance hypnosis that he unleashes with great power... 

Wall, Bill - NN
lichess.org, 2016

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 

4...Kxf7 5.Nxe5+ Kf8 6.O-O 

White plays a "neutral" move that he will eventually have to play, anyhow, and "asks" Black what his plan is. 

A popular alternative response (according to The Database) has been 6.d4. Bill has experimented with 6.Nd3. Probably "best" is to continue with 6.Nxc6.

6...Qf6 

This Queen placement is typical in a Jerome Gambit.

A couple of recent games of Bill's have featured 6...d6:  7.Nxc6 bxc6 8.Nc3 (8.d4 Bb6 9.Nc3 Ba6 10.Re1 Qf6 11.e5 Qh4 12.Re4 Qe7 13.Qf3+ Qf7 14.Rf4 Qxf4 15.Bxf4 d5 16.Bh6+ Ke7 17.Bxg7 Black resigned, Wall,B - Guest399227, PlayChess.com, 2016) 8...Nf6 9.d4 Bb4 10.Qf3 Bg4 11.Qf4 Kg8 12.e5 Bxc3 13.exf6 Qd7 14.bxc3 Bf5 15.Qg3 Bxc2 16.Bh6 g6 17.Rfe1 Qf5 18.Re7 Qxf6 19.Rae1 Bf5 20.Rxc7 Rb8 21.h3 Rc8 22.Qe3 Rf8 23.Qe7 Qf7 24.Qxf7+ Rxf7 25.Re8+ Rf8 26.Rxf8 checkmate, Wall,B - Anonymous, lichess 2016.

Perhaps the strongest response was seen in billwall - DeDrijver, Chess.com 2012:  6...Nxe5 7.d4 Bd6 8.dxe5 Bxe5 9.f4 Bd4+ 10.Qxd4 Qf6 11.e5 Qb6 12.Qxb6 axb6 13.Nc3 Ne7 14.Nb5 c6 15.Nd6 g6 16.f5 gxf5 17.Bh6+ Kg8 18.Nxf5 Nxf5 19.Rxf5 d5 20.Rf8 checkmate.

7.Nxc6 dxc6 

8.Nc3 Bd6 9.d4 h6 

Oversight? Intentionally returning the sacrificed piece?

10.e5 Bxe5 11.dxe5 Qxe5 12.Re1 Qg5 13.Bxg5 Black resigned