The end of Twilight Princess is permanently embedded into my mind. Just the silence of Ganondorf standing with the sword plunged through his chest is incredible and a little haunting at the end of that game.
That, and when my dad showed me DOOM. That was a good day.
Being enthralled by Final Fantasy VII when I was a wee lad. So many hours of my childhood are in that world.
As a teenager, my cousin & one of my best friends watched me do a complete playthrough of Golgo 13 for the NES, but with a catch:
At the start of every dialogue scene, I had to find a brand new, unused reason to make Duke Togo / Golgo turn around. Halfway in, I was shouting things like “FREE ICE CREAM BEHIND YOU”.
No matter what the reason was, the response I voiced for Golgo/Duke was always (in a voice like Hugo the Abominable Snowman): “Oh, it’s just a man. You fooled me again.”
Game defeated. No reason used twice.
A tie between spending hours and hours sitting in front of one of those big wooden late 80s TVs playing Super Mario Bros 3, and realizing I had a crush on the neighbor girl while we played (mid 90s) Street Fighter
Playing Dungeon Master, and Eye of the Beholder series on my Amiga.
I spent a lot of time playing wwf no mercy and vigilante 8 2nd offense. I mostly fell back into playing the tony hawk games for the longest time.