Mine had to be playing Brutal Mario / Super Kitiku Mario back in high school. This is what got me into Mario Mods and just seeing Mario go through worlds and fight bosses from other games was insane.
I adored this ROM and still do to the day. Weirdly, nothing else wowed me like this or blew me away and I still play Mario Romhacks to this day. I guess the closest feeling I got since playing Brutal Mario when I was 14 was playing B3313 aboit 2 years ago.
But enough about me, what about you? What were the best moments you had in gaming? What was your high moment?
Playing the original Mortal Kombat at a friend's house who had less strict parents. Participating, and dominating, in the national competitions hosted by Blockbuster. Clearing Chronotrigger repeatedly to see all the different possible endings. Exploring the seemingly endless vast dungeons of Daggerfall. Importing a Japanese N64 to play Mario 64 months before it came to the States.