In the following 1-minute game, it is clear that things did not go as planned, for Black.
angelcamina - Master1615
1 0 bullet, lichess.org, 2019
1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Nc3 Bc5 5.Bxf7+
The Italian Four Knights Jerome Gambit. Black was looking for a balanced, quiet game, but this changed things.
4...Kxf7 6.Nxe5+ Nxe5 7.d4 Bb4
Black has two extra pieces that he can return. He leads in development. Surely he is better? No, actually the game is about even. Nobody ever said that the Jerome Gambit made sense.
8.dxe5 Bxc3+ 9.bxc3 Nxe4
Sad. Best for Black was 9...Re8 10.exf6 Rxe4+ 11.Be3 Qxf6 12.0-0 d6, with an even game.
10.Qd5+
An improvement over 10.Qf3+, which still won, in angelcamina - puffy04, lichess.org, 2019 (1-0, 20)
10...Kf8 11.Qxe4 d6 12.Ba3 Qg5
Lashing out. Black tried 12...Be6 in angelcamina - apropes, lichess.org, 2019 (1-0, 21).
Black's King is at risk, and his defense fails.
13.exd6 cxd6 14.Bxd6+ Kg8 15.O-O Bf5 16.Qd5+ Be6 17.Qxe6 checkmate