I can't believe this thread is real. OP you may be mostly talented in smash64 but that doesn't mean you have broad spectrum on how Smash64 works. I just skimmed over your thread but if you think anyone is a threat to isai despite any character he uses or how rusty he is then you obviously don't know about smash64 as much as you think you do.
When you get to a certain level of awareness and understanding of the game, it doesn't really matter how long you haven't played or what character you use or what matchup you're in. Smash64 isn't melee, brawl, or new kid ****, It's a fundamental N64 game that relies heavily on players ability to literally do things rather than how hard someone can try to win. Even in hard counter picks like Luigi on jiggly isai will still win versus anyone in the community. He's literally better than everyone's best gameplay, he's played for over a decade and has done just about every possible thing in smash64 from every pixel of the screen.
The smash64 community is TERRIBLE, top 10 apex, top 3 apex, "top players" around the world, nobody not a single person, is as good as isai is with all characters with any character. That's a fact that has not changed, the guy has simply put too much work into this game for anyone to actually be better overall. Maybe in 20 years from now if smash64 is still a thing and cuddlytoys played every single day maybe he could be. But that probably wont happen. Nobody is going to be as good as isai, at most the few players who can tryhard like boomfan can beat him a few times but they aren't going to ever win a 12 character battle or a battle royal. It's simply not plausible. If you actually think or believe anything relating to the community being relatively good in comparison to isai then you're just delusional and have a lot to learn about smash64 if you want to get good.