Chess Opening Theory/1. e4/1...e5/2. Nc3/2...Nf6/3. Bc4/3...Nxe4/4. Qh5/4...Nd6/5. Qxe5

5. Qxe5+
This move is an anti-climax, useful if White wanted to scare Black but not actually follow through with the plan. After a queen exchange with 6. Qe7 7. Qxe7+ Bxe7, White can save the bishop with Bb3 or Be2 then develop with Nf3, d4, and castling, having a slight advantage due to Black's knight blocking the d5 pawn and a rather bad queen's bishop, as well as first move advantage. However, Black can move the knight to f5 and allow the d pawn to move to activate the queen's bishop, and c6 to support a future d5 to take space in the center. This is still a rather interesting game, just not crazy.

Theory Table
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1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4 4. Qh5 Nd6 5. Qxe5+