A short KGA game

1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. Ng5 d5 5. d3 Bg4 6. Be2 dxe4 7. dxe4 Bxe2 8. Qxe2 Nc6 9. Qc4 Nd4 10. Qxf7# {Black checkmated} 1-0

6..h6 . He left the knight at g5 that was treatening f7 alone. It was a mistake.
7. dxe4 was a mistake exposing my queen. He could have taken my queen with his.
9. he should have played ..Qe7