An Elephant Gambit with a missed mate (best forgotten!)
1. e4 e5 2. Ng1f3 d5
The Elephant Gambit. This leads to a nice open position at the cost of a pawn.
3. exd5
Nxe5 is also possible here.
3... Bf8d6
This protects the e pawn which was still threatened, clears one piece out of the way of castling and takes a sneaky aim towards h2 for when the e pawn moves.
4. d3 f5
This supports an advance of the e pawn and contemplates the possibility of opening the f file in due course.
5. Bc1g5 Ng8f6 6. Nb1d2 O-O 7. Bf1e2 Qd8e8
Unpinning the Queen which now supports an e pawn push and can also be transferred to f7, g6 or h5.