Coffee for Dessert

[Event “?”]
[Site “Chess.com iPhone”]
[Date “2024.08.12”]
[Round “?”]
[White “Guest0081292479”]
[Black “Guest7996821564”]
[Result “1-0”]
[FEN “rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq – 0 1”]
[WhiteElo “1600”]
[BlackElo “1600”]

1.e3 c5 2.Be2 a6 3.Nf3 h6 4.O-O e6 5.Re1 b5 6.d4 cxd4 7.Nxd4 Bb7 8.c3 Nc6 9.Bd3 Nxd4 10.cxd4 Ne7 11.Qe2 Ng6 12.Nd2 Be7 13.Nf3 Bg5 14.Bxg6 fxg6 15.Ne5 O-O 16.Nxg6 Rf6 17.Qd3 Qe8 18.Nf4 Bxf4 19.exf4 Rxf4 20.Bxf4 Qf7 21.Be5 Qe8 22.Rac1 Bc6 23.Rxc6 dxc6 24.Qe4 g5 25.Rc1 Kf7 26.Rxc6 a5 27.Rc7+ Kg8 28.Qh7+ Kf8 29.Qg7# {1-0}

Were there missed opportunities during the opening? Can black fix 1 blunder and win?