Inverted cobra with the f-18????? (DCS).  

That’s just the fly by wire system trying to level the plane back out.

I put the landing gear up after the video ended.

I mean yeah, it does say in the caption

Aren't you smart 🤓

a flight sim game. Supposed to be the most realistic and advanced military sim in existance. it stands for "Digital Combat Simulator" And another variant of it is used for pilot training, especially A-10 pilots. I believe it is called "Mission Combat Simulator"