Pocket Monsters Stadium FAQ:

Q: What is this game?
A: Pocket Monsters Stadium, which was only released in Japan (alternatively referred to as Pokemon Stadium 0). It was the first Stadium game, and was built kinda as a prototype, to hold battles for the competitive formats at the time.
It only has 2 modes, Nintendo Cup '97 (Poke Cup, lvls 50-55) and Nintendo Cup '98 (Lvl 30 only). The selection of Pokemon also made it so only Pokemon that are competitively viable (i.e. fully evolved Pokes) are available, as they are the only ones in the game at this point. Also Pikachu, lol. Some fully evolved Pokemon are excluded also, as they evolve after level 30, which was the max level in the main Cup in this game. However Dragonite, the Starters, and Legendary birds still feature.
'97 only has 1 cup, and '98 has 4, making 5 in total.

Q: What is this run?
A: Well, the speedcategories are basically "Do all 5 cups", "Do all 4 '98 cups" and "Do the '97 cup" (With each individual '98 cup being a misc category). So the category I'm 'trying' to do is doing all of the cups, but I'll switch around what I start with to try and get good individual cups as well whilst optimising the full run.
I'm currently leading with Great Ball '98, as it's the only single cup record I don't have atm.

Q: Why are you using <pokemon>? Why not <other pokemon>?
A: The restrictions in running this game involve only using rental Pokemon (as otherwise it would be incredibly easy and not at all challenging). 
For '97, you mainly use electric Pokemon (Zapdos/Jolteon/Electrode) and Golem for their electrics. Alakazam and Tauros also occasionally feature as they matchup a little better on some fights.
For '98, a more well rounded team is used with pretty obvious purpose.

Q: Anything else unique about this run?
A: Yeah so '98 with it's 4 cups actually has the exact same Pokemon as the opponents all the way through (albeit with different moves/stats, and also levels for the first 4 fights). 
However '97 has more variance even though it's only one cup. You do 8 fights, but the 8 trainers you battle are randomised from a pool of 15 trainers, so the order and which fights you even do are up to chance.

Q: Can you manipulate the Pokemon the trainers use by using other Pokemon? 
A: I don't know with this game tbh. I get very similar fights a lot of the time, but they can always choose more than 1 team, so it's still not true manip.

Q: What is the record?
A: https://www.speedrun.com/pocketmonstad | See: Splits for the full run.

Q: So what's your goal?
A: For the full game run, I want a deathless run, which would be around 2:30. For Great Ball, just the record.