Not all of the traps and surprises are for Black in the Jerome Gambit. The following game has a nasty snare that White steps in; and it is doubly dangerous in a blitz game. Be aware: chessmanjeff is no stranger to the Jerome Gambit, either; The Database has 239 of his games.
chessmanjeff - hugore
5 0 blitz, FICS, 2016
1.e4 e5 2.Bc4 Bc5 3.Nf3 Nc6 4.Bxf7+
4...Kxf7 5.Nxe5+ Kf8
This very early defense to the Jerome could come as a surprise to an unprepared White. For some history of the line, see the post "Merry Christmas! A Hysterical/Historical Jerome Gambit Part 1".
The Banks variation, most recently covered in the post "Jerome Gambit: Battle of Wits" where 6.Nxc6 was given as best - and then Black has the surprise 6...Qh4!?. Mayhem ensues.
Another surprise. Black offers the exchange. White should not accept!
An alternative, hoping to return to "normal" lines, was not successful: 7.Nxc6 dxc6 8.O-O Nf6 9.Qf3 Qxe4 10.Qc3 Bd4 11.Qb4+ c5 12.Qb5 c6 13.Qa5 b6 14.Qa3 Qxc2 15.Nc3 Be6 16.Ne2 Be5 17.d4 Bd6 18.dxc5 Bxc5 19.Qf3 Bd5 20.Qh3 Qxe2 21.Bg5 Qg4 22.Bxf6 Qxh3 23.Bxg7+ Kxg7 24.gxh3 Rhg8 White resigned, HooahMan - elidede, FICS, 2015.
Play should continue, instead, 7.Qf3+ Nf6 8.Nxc6 bxc6 9.d3 d5 10.Nc3 Bg4 11.Qg3 dxe4 12.O-O exd3 13.cxd3 h5 according to Stockfish 8.
7...hxg6 8.Qxh8 Qxe4+
Checkmate is now forced.
This point was overlooked in an earlier game, which is given with light notes: 8...Qf6?! 9.O-O d6 10.d4? (10.c3!?) 10...Nxd4 11.Nc3 Nxc2 12.Nd5 Qd8 13.b4 Bd4 14.Rb1 c6 15.Bb2? (15.Nf4!?) 15...Bxb2 (15...cxd5) 16.Rxb2 Nd4 17.Rd1 Nb5 18.a4 cxd5 19.axb5 Qf6 20.Rb3 dxe4 21.f3 Be6 22.Ra3 d5 23.fxe4 Ke7 24.exd5 (24.Rf3!? Qe5 25.exd5) 24...Bg4 25.d6+ Kd7 26.Rf1 Qd4+ 27.Kh1 Qxb4? 28.Qxg7+ Ke6 29.Qxg6+ Kd5 30.Rd3+ Kc4 31.Qxg4+ Kxb5 32.Rf5+ Ka4 33.Qxb4+ (33.Qd1+ Qb3 34.Qxb3#) 33...Kxb4 34.Rf4+ Kc5 35.d7 Rd8 36.Rc4+?! Black forfeited on time, HooahMan - elidede, FICS, 2015.
Another earlier cautionary tale: 9.Kf1 Qd4 10.Ke1 Qxf2+ 11.Kd1 d6 12.h3 Qxg2 13.Re1 Qf3+ 14.Re2 Bf2 15.d3 Nd4 16.Nc3 Qh1+ 17.Kd2 Nf3 checkmate, splott - mika76, GameKnot.com, 2008.
9...d6 10.Re1 Qg4+ 11.f3 Qxg2 12.Re8+ Kxe8 13.Qxg8+ Kd7 14.Qxg7+ Ne7
The "only move" to preserve the win, actually. Take a look at 14...Ke6 15.Qg8+ Ke5 16.Qg7+ Kf4 17.d4+ Kxf3 18.Qf7+ Bf5 19.Qd5+ Be4 20.Qf7+ Kg4 21.Qf4+ Kh5 22.Qh6+ Kg4 23.Qg5+ Kh3 24.Qh6+, drawn by repetition. Amazing!
15.c3 Qxf3+ 16.Kc2 Qe4+ 17.d3 Qe2+ 18.Bd2 b6 19.d4 Ba6 20.dxc5 Bd3+ 21.Kb3 bxc5 22.Bg5 Rb8+
Missing 22...Bc2+ 23.Ka3 Qa6 but it doesn't matter at all.
23.Ka4 Bc2+ 24.b3 Bxb3+
Or 24...Qa6 checkmate.
25.axb3 Qb5+ 26.Ka3 Qxb3 checkmate
Wow! Let's not do that again, shall we?