Gen 1 Pokémon Moves are Terrible, So I Fixed Them!

If Vulpix/Ninetales don't get any mid-game fire move, have them learn something like Confusion and Psybeam instead (Vulpix already gets Confuse Ray). Maybe Ponyta/Rapidash should learn some of the "kick" moves (Mega Kick, Double Kick, Low-Kick, Jump Kick...) and Growlithe/Arcanine could pbly get stuff like Super Fang, Sword Dance and Rest or something.

Here's an inspired idea. Remove Razor Wind from TM02 and give it to Dragonite as a signature Dragon move. Solve two problems with one fix, since Flying doesn't need Razor Wind alongside Sky Attack and Wing Attack

Vicegrip should be bug type imo. Buffs kingler and pincer, and can possibly be given as a stronger bug stab to scyther and parasect.

Razor wind sounded like such a great move when I was a kid. I wish I knew better.

How about this? Keep your change to Night Shade, and give Psywave the ability of the OG Night Shade. You give Gengar a great move and you make a useless move a purpose.

If we're talking about changing those I have to emphasize that many flying types cannot learn Drill Peck or Sky Attack. You need to change Razor Wind, a Normal-type move, into a Flying-type move. Remove the charge turn and make it full accuracy OR 100ish damage. Again I really cannot stress enough that Butterfree (& Beedrill/Venomoth), Scyther, OR Dragonite cannot be given Drill Peck as they have no beaks. And all but Dragonite normally can't get Fly. Access to any Flying stab is extremely useful, and I don't feel Wing Attack fits in the slightest on the Bug-types. (It would also be nice for Aerodactyl, which does get brave bird, but only fly otherwise. I am assuming it gets wing attack now though.)

As for the Ghost type - as a kid I always felt like dreameater should have been the strongest ghost power move, while Agatha uses, instead of Arbok, simply a Hypno with that move. Would have been a nice foreshadowing for gen 3, when the Hypno in the forrest abducted that little girl 😮

I recently, 20+ years after getting the cartridge, completed the pokedex on my physical copy of red. On the team i went through the game with was a Jolteon with a moveset of Thunderbolt, pin missile, doubble kick and thunder wave. I think i can count on one hand the number of times a clicked a moved that wasnt thunderbolt. To me that says a lot.

Please buff the fossils with how late they are revived they dont really do much except maybe aerodactyl and i think it would be cool if razor wind was turned into aerodactyls signture flying move

Gen 1 was such a mess thinking back on it. Yellow legacy will need a hard hat next to it to show how much construction goes into it

Even Gen 3 has terrible movepools. I think it was in Gen 4 when we first saw diverse movepools across different Pokemon

I'm glad you're keeping the Hyper Beam not recharging after causing the opponent to faint. I really wish that was still how it worked.

An easy way to balance sleep would be to reduce the duration by 1 turn, since it takes 1 turn more in gen 1.

Making Slam a Dragon Type move sounds like an excellent idea, if your goal is to give all Types more STAB options: it's reminiscent of Dragon Tail in concept (not in effect) and is the same BP as Dragon Claw, the modern "catch-all" Dragon STAB. Making Razor Wind the Flying version of Razor Leaf sounds like the most fitting option thematically, and, while Flying might not necessarily need this, if you keep its TM-exclusive status, it could be a neat option for those who don't get Drill Peck; alternatively, I guess you could make it akin to Skull Bash, only raising Speed instead of Defense, but that mechanic was not in Gen 1, so that also depends on if you can code it to work that way or not; thematically speaking, this would be the Kamaitachi raising winds on the first turn and then, speedier than before, flying towards the opponent to cut it. The change to Night Shade is also excellent: while my personal preference is for it to be a mid-game BP move (say, 65 BP), Ghost does not have options, this Gen, so it essentially being the ancestor to Shadow Ball without any secondary effect sounds like a good compromise; the "fixed damage" moves were always really wonky, anyway, and we don't need more than one, considering Seismic Toss would still be there.

Overall, some great ideas here! Really looking forward to playing the final build! Love slam as a physical Dragon move. For Thumder, I think it's safe to move its accuracy to 85% to match fire blast and blizzard. Bite should stay normal imo

I appreciate how much thought and planning you put into these romhacks. I consider Crystal Legacy THE definitive way to play Crystal, I'm anticipating Yellow Legacy will be just as good.

Couple of suggestions: Make Skull bash a rock type move, lower its power to like 80 and give it to Onix instead of Bide. It would make a lot of sense and be more respectable to receive from Brock than Bide. People can still take advantage of not moving on the charge turn, and its a useful early game tm. At 80bp, it becomes a early-mid stage rock move. Even worse than Rock throw really since it takes two turns. At level cap, Onix still shouldnt be able to 1 shot anything that it isnt super effective against. Even with Onix's attack bump (what was it now? like 70?). And then, if you are giving other charge moves a stat increase turn 1, Skull Bash can do +1 Defense. And would fit Brock's Defense motif. Please keep Slam as Dragon! I love that idea! I would like the idea of a Ghost type Bite on Raticate. Im team Ghost Bite lol. I know you dont want to add moves, but if Nightshade is staying as is, then maybe something like Haze or Mist (or some other useless move) can be repurposed as Shadowball. Last resort option. But it does kind of give a best of both worlds effect. For solarbeam, i think just making it grass type fireblast would be better. 1 turn, low accuracy. Grass has a lot of weeknesses, so one turn of doing nothing can be really bad for them. Otherwise, making it increase Special on turn 1 but with a 120power might be better because it'll give a little special defense buff. Razor wind can have a speed increase on charge turn. I think this would also increase crit rate with gen 1 mechanics. Makes it a good moves. Maybe even flying type. Please please please, make Acid have a chance to burn! Lastly, with the trapping moves, you can still switch in gen 1 so its not too horrible. And with sleep, you get access to the pokeflute which is infinite awakenings. Not useful in no item runs but otherwise is a way to balance sleep.

The changes so far are awesome! But, changing sand attack, kinesis, etc. (non-damaging moves) to damaging moves feels too far for a legacy game IMO. I just finished Crystal Legacy and can't wait for this!!

One thing I hope to see are some TM changes, since a lot of them are either only for 1-2 Pokemon or are totally useless. TM16 - Pay Day is now Light Screen, TM30 - Teleport becomes Night Shade, TM37 - Egg Bomb into Flamethrower, TM41 - Soft Boiled to Thunderpunch, etc.

You could make Slam a weaker dragon move (80 bp isn't really "weak", especially in gen 1 terms, but I digress) and have Razor Wind be dragon-type Solar Beam? I also think Sand-Attack as Mud Slap is a great idea for early game grounds like Sandshrew. I also think Bite being ghost makes a lot of sense because Lick is already ghost. Anyway, this looks like it's gonna be a lot of fun! Count me in as excited!