That link from heinzcat is good.
Most likely one of the best vids on the WWW(
I've been playing the Scotch at blitz (4/0) on another site seeing if
I can get a 4...Qh4 game. No luck there but I did get a 4...Qf6 game.
5.Nb3 Qg6 6.Be2 is all theory.
I've always disliked having a Knight on b3 or a Black Knight b6,
They never seem to get back into the game.
Black should not take the e-pawn or the g-pawn.
Black took the e-pawn and ended up with the Queen on f8.
I pulled off a lovely picturescue mate including a way to sac my b3 Knight.
The final position is very pleasing to the eye. (to me anyway).
The material is dead even, the symetrical placing of the pieces.
I use the 'Danish' move order to avoid Petroffs, Philidors, Elephants
and Latvian Gambits. Of course Black can swing into a variation
of these openings but in my experience they rarely do at Blitz.