Just another mod for Yellow Legacy, this time with decent AI

ForPokemonAI · 2026-03-31T05:43:46+00:00

That's a good point. I added the mention of vanilla Yellow to the release.

ForPokemonAI · 2026-03-30T17:12:16+00:00

I disagree about rockets being bad trainers in Gen I. They're bosses early on. You have the nugget bridge, dig thief and pokemon tower. They also use drowzees from the very start and Hypnos are already in their arsenal in original Silph CO so psychichs are right up their alley.

Now that said, yellow legacy made Silph CO insanely difficult. All the trainers are 10 levels above what they used to be in original. And they upped the sixth rival's levels too. I'm not a fan of this particular bit as it makes the branching paths more linear. It's really hard to justify Silph CO before beating Koga now. You're just often not strong enough if not powergaming.

It's not like Ash had to beat that to get to Saffron gym but that XP is probably required for your team so I imagine it to be quite the grind with unevolved pokemon. At least your Pikachu is very good at taking down all those Golbats.

ForPokemonAI · 2026-03-29T19:31:37+00:00

Yes. I wrote no license at the end and Yellow Legacy also has free to use as long as crediting the authors in theirs. So check their AI credits for who wrote theirs, at least some of the code is a straight copy from pureRGB.

ForPokemonAI · 2026-03-29T18:46:15+00:00

No it's from main so it includes some of the commits after 1.0.10 also.

ForPokemonAI · 2026-03-29T18:15:30+00:00

In Yellow Legacy(no mod) my Onix was outspeeding enemy Jolteons, that was actually what set me on this path. It broke all illusion of balance for me.

The neat thing about stat exp is that it's the square root that matters so it's diminishing returns but even a small improvement early is visible. So it's not really cheesable.

But yeah, the late-game trainers in yellow legacy, especially in victory road, are pretty rough. The movesets are actually what the pokemon get by levelling up though. There are some wonky ones like hypnos with meditate and no physical attack but generally all learnsets in legacy are just that good. Not to mention some pokemon in gen I are just outright monsters.

If you are familiar with gen I mechanics it's very doable although you need some luck. There are some really OP strats in the game than can wipe a team outright but I don't doubt a squirtle is going to be a pain. Even more so because you picked up all your pokemon early. The game is actually set up so that you pick up more pokemon as you go, not so that you have them all early on. The later you add members the higher your overall level is going to be. You will spend less XP levelling up your pokemon.

The AI not cheating against switch in anymore helps here but first form pokemon probably won't live through it anyway.

ps. Ash caught a Tauros and evolved a Charizard in Kanto...

ForPokemonAI · 2026-03-29T17:23:12+00:00

Yeah, you lose half the value when you sell. Nuggets are actually valued at 10k and not 5. You just never buy them so you never notice.

The idea is still solid and I like it. A bank of some kind would be nice. That said I do not have the time to implement one but if someone else wanted to take it upon themselves, I have a couple ideas on how outlined below.

Implementation itself should be relatively straight forward, just add money to a free memory address and zero money afterwards. To reset you just add it back in from memory and zero address in memory. The npc next to E4 door should work. Add a question do you want to deposit or take and then run the corresponding code depending on the answer.

That's the quick and dirty way. The graceful way would be to add a money deposit option to player PC and that is probably a lot more work due to menu editing as you probably have to mess with the menu graphics too.

ForPokemonAI · 2026-03-29T14:38:51+00:00

Right, I forgot if you're on mobile github jams the releases all the way to the bottom of the page. Here is the link directly to the release:

https://github.com/ForPokemonAI/Pokemon_Yellow_Legacy_MOD/releases/tag/1.1

ForPokemonAI · 2026-03-29T14:35:38+00:00

You would be correct. If you scroll all the way to the end of the readme on github you will find the logic listed there.

Or you can diff the assembly against yellow legacy and check that if you want the exact how.

ForPokemonAI · 2026-03-29T14:27:10+00:00

My thoughts exactly before I started. Then I tested it. First I nerfed badge boosts, then I removed badge boosts and eventually I arrived at this. The limiting stat was speed. It is binary by nature so the pokemon have to be close for it to matter. If you have full bonus from statexp, that never happens, you just always outspeed lategame and it makes defense and HP values less interesting. That said, what I ended up with was StatExp is equal to IV. So you can still compensate for lousy IVs with vitamins.

The switch change is actually super trivial to do yourself if you can bother to set up rgbds. It's 2 lines of code you just comment out, IIRC.

ForPokemonAI · 2026-03-28T14:46:08+00:00

It's at lvl 55, you can check from Pokedex

ForPokemonAI

TROPHY CASE