The fried liver gets torn apart after 11. Qh4!!!
Fried Liver Attack Still Works

The fried liver gets torn apart after 11. Qh4!!!
I don't know what move sequence you are talking about, but at my rating, no game stays in book for more than 5 or 6 moves, so 4.Ng5 really packs a wallup. It's a blast.
Plus, there is no refutation for 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5, nor 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Nxd5 6.Nxf7 Kxf7 7.Qf3+. Absolutely none.

Interesting that IM Trent recommends it, as most consider it to give black too many dynamic chances.
In the second game, after Nxf7, your opponent decided to save his rook instead of his queen... Maybe, maybe, beating such a weak opponent doesn' t say much about the opening you used...

The fried liver gets torn apart after 11. Qh4!!!
I don't know what move sequence you are talking about, but at my rating, no game stays in book for more than 5 or 6 moves, so 4.Ng5 really packs a wallup. It's a blast.
Plus, there is no refutation for 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5, nor 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Nxd5 6.Nxf7 Kxf7 7.Qf3+. Absolutely none.
It's actually a reference to a Chess.com Vote Chess game Knight v.s. Bishop where we played the Fried Liver and the knight team played a move tha we don't think has ever been played before and won very quickly.

In the second game, after Nxf7, your opponent decided to save his rook instead of his queen... Maybe, maybe, beating such a weak opponent doesn' t say much about the opening you used...
I understand that players somewhere above 1200 are familiar with the ins and outs of the Fried Liver Attack, and some will counter attack with the Traxler. I've tried the Traxler, and it also is a lot of fun, with tons of tactical complications.
I'm still playing in the under 1200 pool, with a Live Chess Blitz rating of +/- 1000, so even if my opponent knows a little about this opening, it's not easy to solve all of the complications that follow, for both sides. That has been my experience.
IM Lawrence Trent has a fritztrainer video out titled Two Knight's Defence, where he advocates 4.Ng5. It's a fun move to play. Here are two examples from recent games.
The game below is not an example of the Fried Liver Attack, but I did play 4.Ng5. I am surprised at the number of times my opponents go into a deep think after 4.Ng5, not always finding the move, 4...d5.