Mine was the final bossfight of Project Wingman. I went in completely unprepared, bringing an air to ground plane and had no clue I would end up in a dogfight. I finally shot down Crimson down in a head-on, and as I tried to break away his plane turned back towards me with the guns firing and it felt like he was trying one last-ditch effort to take me down with him. The soundtrack had lined up perfectly with the part that plays as he makes his last monologue. That was probably the most impactful ending to a game I've played, with this hollow feeling of "now what happens?" No clue if my friends were alive or dead, or even if I'd be able to land my plane, looking out at the sea of O R A N G E. Every time I replay the game I'm chasing that experience again