black dutch gambit

[Event "Casual Classical game"]
[Site "lichess.org/0QCq8g9F"]
[Date "2017.07.25"]
[Round "-"]
[White "milanc"]
[Black "malbork"]
[Result "0-1"]
[UTCDate "2017.07.25"]
[UTCTime "09:30:40"]
[WhiteElo "1823"]
[BlackElo "1358"]
[Variant "Standard"]
[TimeControl "600+0"]
[ECO "B01"]
[Opening "Scandinavian Defense: Kloosterboer Gambit"]
[Termination "Normal"]
[Annotator "lichess.org"]

1. e4 d5 2. exd5 c6 3. dxc6 e5 { B01 Scandinavian Defense: Kloosterboer Gambit } 4. cxb7 Bxb7 5. f3 Bc5 6. Qe2 Nd7 7. Nc3 Ngf6 8. d3 O-O 9. Bg5 Qb6 10. O-O-O Bxg1 11. Na4 Qd4 12. Nc3 Rab8 13. Bh4 Be3+ 14. Kb1 Nd5 15. Nxd5 Bxd5 16. b3 a5 17. c3 Qxc3 18. Qxe3 Bxb3 19. Rc1 Bc2# { Black wins by checkmate. } 0-1

So this is centre gambit with one tempo less
1 e4 e5 2 d4 exd4 3 c3 dxc3 4 Bc4 cxb2 5 Bxb2.
The move 5 f3? was not inspired. It makes o-o impossible and thus compels o-o-o into the open files.
Crisp attack. You could have finished him off earlier with the queen sacrifice 15...Qxb2+.

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After thorough analysis i concluded the following: destruction

Reversed danish gambit.

Very dubious though.

This isn't very good because there is no Bc4 (in this case Bc5) for black). Black doesn't have much compensation for the 2 pawns, just a fianchettoed bishop and a central pawn. lichess.org/wnCWPtk7