Looking for a list of terminology so I can more easily find a run that matches. Such an old man move but I'm trying to pass on my love of KH1 to my kids.

Things like 100%, Any, All world. I don't know what they mean.

There's quite a good thread of terminology here which is expansive to cover lots of general terms without mentioning game-specific things like 'World One' or 'All Worlds' as you've mentioned, but you might be able to interpret the meaning via the Kingdom Hearts' category rules.

1. Any%: Complete the game as fast as possible, no 100% requirements.
2. 100%: Complete all objectives, including items, abilities, and secret bosses.
3. Glitchless: Completing the game without using any glitches or exploits.
4. No Major Glitches (NMG): Runs that avoid major game-breaking glitches but can still use minor skips.
5. Route: A specific set of actions, levels, and boss strategies to complete the game optimally.
6. Seed: A random number used in certain categories like "Randomizer" or "Seeded" runs.
7. Menuing: Efficiently navigating through the game’s menus, including equipping items and abilities.
8. Tricks: Techniques that save time or skip parts of the game (e.g., “Kurt Zisa Skip”).
9. ABs: Auto-Boosts—using auto abilities like Dodge Roll, or other boosts to save time.
10. Split: Time checkpoints that track your progress and compare against a previous best time

Read More Interested Moment :)

KH1FM speedrunning involves completing the game as quickly as possible, using strategies like skips, glitches, and optimized movement. Key terms include Any%, 100%, RNG, and Dodge Roll, among others.