So hopefully I'm doing this right! :) (I'm still new to some of this so haven't figured out things yet! I did ask this via Mastodon also, but wanted to add more detail to my answer!)
Is there a computer game, a moment in a game, a boss fight, or a specific moment that you would love to experience fresh with no prior memory of it?
Mine would have to be The Seat of Sacrifice fight in Final Fantasy XIV, one of if not my most favourite fights in the game to date.
The mechanics work so well and tie into everything that's been happening, and then that moment where <redacted> (I refuse to spoil it!) shows up to help and then leaves with I think what made me cheer SO MUCH the first time I did the fight.
The music, the song To The Edge has become one of my most played songs in my entire music library (alongside Endwalker - Footfalls and Shadowbringers) as it is quite frankly perfect for the fight. and when they revealed that Soken had been battling cancer and wrote it whilst in hospital...
I adore the fight all together, and cannot help but say the lines in the cut scene bit in the middle every time I do the fight, and will never ever get bored of it.
So what moments in a game would you love to complete again with no prior experience?
In Metal Gear Solid for the original PlayStation, there was a boss fight against Psycho Mantis, who was a psychic who could predict your every move. The fight was literally impossible. It didn't matter what you did, he always had the perfect counter. Of course, he would taunt you about his ability to predict your every move.
My brother and I were absolutely stuck on the fight for what seemed like forever. At one point, a character mentions that he's reading your controller and you can block him by switching to the 2nd control port. So you physically unplug your PlayStation controller and plug it into the other port. Then he reacts by not being able to read your moves, and you can actually fight him "fair".
It blew my mind the first time it happened. I can't remember a video game ever breaking the forth wall like that before.
I loved the fight so much. The way Mantis read the data for other games off your memory card was just so cool; such a clever way to mess with the player.
I can't remember that part, but I might not have had any other saves at the time. Do you remember what he said?
Here's the video to see all the interactions for yourself! https://youtu.be/cX-fX7Y87dk?t=6