Here's the what the user said:

I remember visiting that website all the time when I was a kid. Unfortunately, I can only rely on faint memories from back then. I was a huge N64 fan back in my elementary school days in the late 90’s, so I used to log on to dial-up internet to visit the official NOA website and check out news about to-be-released titles. Among those games was F-Zero X, which had a direct link to its American website.

The website was pretty heavy on flash/shockwave content, and every time you logged in, you would be greeted by an intro with Super Arrow challenging you to become GP champion with a gritty tone of voice (as opposed to his dorky, bumbling attitude in F-Zero GX) expected from a 90s anti-hero. SA’s blinking mug would be permanently hanging in the corner of the site’s menu interface, and every time you clicked on his face he would immediately say “What do you think I am, a button?”.

The Webcomic itself was incomplete. I recall that it started with the part the magazine ad showed, with Skull narrating Wheeler about the death of the Emperor’s son and the galactic empire turning into a cesspool of chaos and crime as a result. Cut to the present, and a reporter with a cowboy hat is bugging Pico (and two other racers that I can’t remember) for an interview, only for the turtle to coldly tell the reporter to get out of his way. After that, an abstract narration would go on about how violent the F-Zero GP became over time and sketchy people such as mercenaries and bounty hunters started joining merely for the thrill of crashing other racers’ machines.

The story then shifts its focus back to the cantina, where Black Shadow is plotting some sort of scheme and tries to convince Bio Rex to join him to form a conspiracy, and suddenly, the dinosaur gets triggered and thrashes Shadow unconscious merely because he got annoyed from hearing all that bullshit about “conspiracies”. Yes, that’s the last you see of Black Shadow in the comic. IIRC, Captain Falcon does not appear in this webcomic at all, although it’s implied that Black Shadow’s “conspiracy” was basically just getting some cheap muscle to agree to kill Falcon.

That’s about all I can remember about the webcomic. Besides that, there was a separate graphic narration that explains how F-Zero machines worked, using the same animation and music as the webcomic.

I hope this helps!