ROM Hack Small Mods for Pokemon Let's Go

JPAN

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I have created three small mods for Pokemon Let's Go Eevee (that also work in Pikachu if you change the TitleID of the folder) that I decided to share with you all today. They are compatible with each other, so feel free to mix and match.

Celadon Department Store Sells Moon Stones

As the name implies, this small mod changes the evolution stone shop in Celadon to sell Moon Stones. It changes only 4 bytes in the Shop_data.bin file. I have played with this mod for a while and saw no unintended side effects of the changes.

Evolve Into Aloan Forms

This mod replaces a bunch of Evo files to allow every pokemon with an aloan form to become aloan. I made this mod in order to allow obtaining every aloan in-game with no trade, as well as allowing for pokemon stats (IV's, Height, Weight) to carry over to the aloan form. It also adds a way for Meltan to evolve in these games, at level 40. If you are using another mod that already does that, delete the evo_808.bin file before applying the mod.

EDIT: So, the mod wasn't working right due to the game not allowing evolutions to the same species, regardless of form. So, changes had to be made. You can now evolve into aloan base forms from their kantonian evolutions (EX sandslash-> aloan sandshrew) and vice versa. Exceptions being the pokemon that only have one aloan evolution (pikachu, exeggcute, cubone), which evolve directly and cannot be reversed. Also, because I had to edit Graveler's (and aloan version) evolution data, I also included two methods of evolving into the third stage, lv 50 or Moon stone. And for the sake of completion Kadabra, Machoke and Haunter are also included. If you want to change the LV of evolution, edit the 32 at address 0x17 with any hex editor to the desired level. Meltan can now evolve with a moon stone as well. The download file for this mod has been updated.

Raticate + moon stone = Aloan Ratata
Aloan Raticate + moon stone = Rattata
Pikachu + Water stone = Aloan Raichu
Sandslash + Ice Stone = Aloan Sandshrew
Aloan Sandslash + Moon Stone = Sandshrew
Ninetales + Ice Stone = Aloan Vulpix
Aloan Ninetales + Fire Stone = Vulpix
Persian + Moon Stone = Aloan Meowth
Aloan Persian + Moon Stone = Meowth
Graveler + Thunder Stone = Aloan Geodude
Graveler + Moon Stone = Golem
Graveler at Lv 50 = Golem
Golem + Thunder Stone = Aloan Geodude
Aloan Graveler + Moon Stone = Geodude
Aloan Graveler + Thunder Stone = Aloan Golem
Aloan Graveler at Lv 50 = Aloan Golem
Aloan Golem + Moon Stone = Geodude
Muk + Water Stone = Aloan Grimer
Aloan Muk + Moon Stone = Grimer
Exeggcute + Water Stone = Aloan Exeggutor
Cubone + Fire Stone = Aloan Marowak

Kadabra + Moon stone = Alakazam
Kadabra at Lv 50 = Alakazam
Machoke + Moon stone = Machamp
Machoke at Lv 50 = Machamp
Haunter + Moon stone = Gengar
Haunter at Lv 50 = Gengar

Meltan + Moon Stone = Melmetal
Meltan at lv 40 = Melmetal

One (or two) Pokemon species per Route

This mod changes the encounter table to make it so that all base stage pokemon can be caught in the wild multiple times. It made it so that most routes have only either one pokemon with 100% chance to appear, or two pokemon with 50% chance to appear.
I recommend only playing with this mod after finishing the main quest. It is ideal for chaining (for perfect IVs and shinies) and finding a specific pokemon of certain height and weight.
All pokemon encontered with this mod should be legit, as they are caught in areas they were already present, with exception of the Fossils, Porygon and Voltorb and Magnemite, that were moved to route 10 for balance.
This mod also allows you to encounter the legendary pokemon in the wild, with 10% chance on the same map they could be caught. Will probably not look legit because of the level caught difference. It also adds mew in Viridian Forest.

Code:
Zone: Pokémon Mansion BF1
    Normal Encounters:
        Levels: 39-44
            Ditto (100%)
Zone: Pokémon Mansion 3F
    Normal Encounters:
        Levels: 39-44
            Magmar (100%)
Zone: Pokémon Mansion 2F
    Normal Encounters:
            Koffing (100%)
Zone: Pokémon Mansion 1F
    Normal Encounters:
        Levels: 39-44
            Grimer (100%)
Zone: Pokémon Tower 6F
    Normal Encounters:
        Levels: 27-32
            Cubone (100%)
Zone: Pokémon Tower 5F
    Normal Encounters:
        Levels: 27-32
         Cubone (100%)
Zone: Pokémon Tower 4F
    Normal Encounters:
        Levels: 27-32
            Gastly (100%)
Zone: Pokémon Tower 3F
    Normal Encounters:
        Levels: 27-32
            Gastly (100%)
Zone: Cerulean Cave BF1
    Normal Encounters:
        Levels: 51-56
            Mewtwo (10%)
            Snorlax (90%)
    Water Encounters:
        Levels: 51-56
            Poliwrath (100%)
Zone: Cerulean Cave 2F
        Levels: 51-56
            Porygon (100%)
Zone: Cerulean Cave
    Normal Encounters:
        Levels: 51-56
            Lickitung (100%)
    Water Encounters:
        Levels: 51-56
            Poliwag (50%)
            Magikarp (50%)
Zone: Route 25
    Normal Encounters:
        Levels: 09-14
            Psyduck (50%)
            Venonat (50%)
    Water Encounters:
        Levels: 09-14
             Kabuto (100%)
    Sky Encounters:
        Levels: 03-56
            Pidgeot (05%)
            Pidgeotto (35%)
            Pidgey (60%)
Zone: Route 24
    Normal Encounters:
        Levels: 07-12
            Meowth (100%)
    Water Encounters:
        Levels: 07-12
            Omanite (100%)
    Sky Encounters:
        Levels: 03-56
            Pidgeot (05%)
            Pidgeotto (35%)
            Pidgey (60%)
Zone: Route 23
    Normal Encounters:
        Levels: 41-46
            Exeggcute (100%)
    Water Encounters:
        Levels: 41-46
            Poliwag (60%)
        Magikarp (40%)
    Sky Encounters:
        Levels: 03-56
            Fearow (40%)
            Spearow (60%)
Zone: Route 22
    Normal Encounters:
        Levels: 03-04
            Spearow (100%)
    Water Encounters:
        Levels: 03-04
            Poliwag (100%)
    Sky Encounters:
        Levels: 03-56
            Fearow (40%)
            Spearow (60%)
Zone: Route 21
    Normal Encounters:
        Levels: 37-42
            Tangela (100%)
    Water Encounters:
        Levels: 37-42
            Tentacool (100%)
    Sky Encounters:
        Levels: 03-56
            Pidgeot (05%)
            Pidgeotto (35%)
            Pidgey (60%)
Zone: Route 20
    Water Encounters:
        Levels: 39-44
            Lapras (100%)
    Sky Encounters:
        Levels: 03-56
            Pidgeot (05%)
            Pidgeotto (35%)
            Pidgey (60%)
Zone: Route 20
    Water Encounters:
        Levels: 37-42       
             Lapras (100%)
    Sky Encounters:
        Levels: 03-56
            Pidgeot (05%)
            Pidgeotto (35%)
            Pidgey (60%)
Zone: Route 19
    Water Encounters:
        Levels: 37-42
        Tentacool (100%)
    Sky Encounters:
        Levels: 03-56
            Pidgeot (05%)
            Pidgeotto (35%)
            Pidgey (60%)
Zone: Route 18
    Normal Encounters:
        Levels: 33-38
            Aerodactyl (100%)
    Sky Encounters:
        Levels: 03-56
            Pidgeot (05%)
            Pidgeotto (35%)
            Pidgey (60%)
Zone: Route 18
    Water Encounters:
        Levels: 33-38
            Staryu (100%)
    Sky Encounters:
        Levels: 03-56
            Pidgeot (05%)
            Pidgeotto (35%)
            Pidgey (60%)
Zone: Route 17
    Normal Encounters:
        Levels: 33-38
            Ponyta (50%)
            Eevee (50%)
    Sky Encounters:
        Levels: 03-56
            Pidgeot (05%)
            Pidgeotto (35%)
            Pidgey (60%)
Zone: Route 16
    Normal Encounters:
        Levels: 31-36
            Doduo (100%)
    Sky Encounters:
        Levels: 03-56
            Pidgeot (05%)
            Pidgeotto (35%)
            Pidgey (60%)
Zone: Route 16
    Sky Encounters:
        Levels: 03-56
            Pidgeot (05%)
            Pidgeotto (35%)
            Pidgey (60%)
Zone: Route 15
    Sky Encounters:
        Levels: 03-56
            Pidgeot (05%)
            Pidgeotto (35%)
            Pidgey (60%)
Zone: Route 15
    Normal Encounters:
        Levels: 33-38
            Scyther (50%)
        Pinsir (50%)
    Sky Encounters:
        Levels: 03-56
            Pidgeot (05%)
            Pidgeotto (35%)
            Pidgey (60%)
Zone: Route 14
    Normal Encounters:
        Levels: 33-38
            Tauros (100%)
    Sky Encounters:
        Levels: 03-56
            Pidgeot (05%)
            Pidgeotto (35%)
            Pidgey (60%)
Zone: Route 13
    Normal Encounters:
        Levels: 33-38
            Farfetch’d (100%)
    Water Encounters:
        Levels: 33-38
            Tentacool (50%)
            Magikarp (50%)
    Sky Encounters:
        Levels: 03-56
            Pidgeot (05%)
            Pidgeotto (35%)
            Pidgey (60%)
Zone: Route 12
    Normal Encounters:
        Levels: 31-36
            Krabby (100%)
    Water Encounters:
        Levels: 31-36
            Horsea (50%)
            Magikarp (50%)
    Sky Encounters:
        Levels: 03-56
            Pidgeot (05%)
            Pidgeotto (35%)
            Pidgey (60%)
Zone: Route 11
    Sky Encounters:
        Levels: 03-56
            Pidgeot (05%)
            Pidgeotto (35%)
            Pidgey (60%)
Zone: Route 11
    Normal Encounters:
        Levels: 13-18
            Mr. Mime (50%)
            Drowzee (50%)
    Water Encounters:
        Levels: 13-18
            Horsea (100%)
    Sky Encounters:
        Levels: 03-56
            Pidgeot (05%)
            Pidgeotto (35%)
            Pidgey (60%)
Zone: Route 10
    Normal Encounters:
        Levels: 18-23
            Voltorb (50%)
            Magnemite (50%)
    Water Encounters:
        Levels: 18-23
            Dratini (100%)
    Sky Encounters:
        Levels: 03-56
            Fearow (40%)
            Spearow (60%)
Zone: Route 10
    Sky Encounters:
        Levels: 03-56
            Fearow (40%)
            Spearow (60%)
Zone: Route 9
    Normal Encounters:
        Levels: 17-22
            Nidoran♀ (50%)
            Nidoran♂ (50%)
    Sky Encounters:
        Levels: 03-56
            Fearow (40%)
            Spearow (60%)
Zone: Route 8
    Normal Encounters:
        Levels: 22-27
            Ninetales (01%)
            Vulpix (100%)
    Sky Encounters:
        Levels: 03-56
            Pidgeot (05%)
            Pidgeotto (35%)
            Pidgey (60%)
Zone: Route 7
    Normal Encounters:
        Levels: 22-27
            Growlithe (100%)
    Sky Encounters:
        Levels: 03-56
            Pidgeot (05%)
            Pidgeotto (35%)
            Pidgey (60%)
Zone: Route 6
    Normal Encounters:
        Levels: 11-16
            Abra (100%)
    Water Encounters:
        Levels: 11-16
            Goldeen (100%)
    Sky Encounters:
        Levels: 03-56
            Pidgeot (05%)
            Pidgeotto (35%)
            Pidgey (60%)
Zone: Route 5
    Normal Encounters:
        Levels: 11-16
            Jigglypuff (100%)
    Sky Encounters:
        Levels: 03-56
            Pidgeot (05%)
            Pidgeotto (35%)
            Pidgey (60%)
Zone: Route 4
    Normal Encounters:
        Levels: 07-12
            Ekans (50%)
            Sandshrew (50%)
    Water Encounters:
        Levels: 07-12
            Magikarp (100%)
    Sky Encounters:
        Levels: 03-56
            Fearow (40%)
            Spearow (60%)
Zone: Route 4
    Sky Encounters:
        Levels: 03-56
            Fearow (40%)
            Spearow (60%)
Zone: Route 3
    Normal Encounters:
        Levels: 03-08
        Mankey (50%)
        Charmander(50%)
    Sky Encounters:
        Levels: 03-56
            Fearow (40%)
            Spearow (60%)
Zone: Route 2 (North)
    Normal Encounters:
        Levels: 03-08
        Oddish (50%)
            Bellsprout (50%)
    Sky Encounters:
        Levels: 03-56
            Pidgeot (05%)
            Pidgeotto (35%)
            Pidgey (60%)
Zone: Route 2 (South)
    Normal Encounters:
        Levels: 03-04
            Weedle (50%)
            Caterpie (50%)
    Sky Encounters:
        Levels: 03-56
            Pidgeot (05%)
            Pidgeotto (35%)
            Pidgey (60%)
Zone: Route 1
    Normal Encounters:
        Levels: 03-04
            Rattata (50%)
            Pidgey (50%)
    Sky Encounters:
        Levels: 03-56
            Pidgeot (05%)
            Pidgeotto (35%)
            Pidgey (60%)
Zone: Victory Road BF2
    Normal Encounters:
        Levels: 41-46
            Hitmonchan(100%)
Zone: Victory Road BF1
    Normal Encounters:
        Levels: 41-46
            Moltres (10%)
        Hitmonlee (90%)
Zone: Victory Road
    Normal Encounters:
        Levels: 41-46
            Chancey (100%)
Zone: Seafoam Islands BF4
    Normal Encounters:
        Levels: 39-44
        Articuno (10%)
            Jynx (90%)
    Water Encounters:
        Levels: 39-44
            Shellder (100%)
Zone: Seafoam Islands BF4
    Normal Encounters:
        Levels: 39-44
        Articuno (10%)
            Jynx (90%)
    Water Encounters:
        Levels: 39-44
            Shellder (100%)
Zone: Seafoam Islands BF3
    Normal Encounters:
        Levels: 39-44
            Slowpoke (100%)
    Water Encounters:
        Levels: 39-44
            Shellder (100%)
Zone: Seafoam Islands BF3
    Normal Encounters:
        Levels: 39-44
            Slowpoke (100%)
    Water Encounters:
        Levels: 39-44
            Shellder (100%)
Zone: Seafoam Islands BF2
    Normal Encounters:
        Levels: 39-44
            Seel (100%)
Zone: Seafoam Islands BF2
    Normal Encounters:
        Levels: 39-44
            Seel (100%)
Zone: Seafoam Islands
    Normal Encounters:
        Levels: 39-44
            Squirtle (100%)
Zone: Diglett’s Cave
    Normal Encounters:
        Levels: 13-18
            Diglett (100%)
Zone: Power Plant
    Normal Encounters:
        Levels: 37-42
            Electabuzz (90%)
        Zapdos (10%)
Zone: Rock Tunnel bf1
    Normal Encounters:
        Levels: 18-23
            Rhyhorn (50%)
            Onix (50%)
Zone: Rock Tunnel
    Normal Encounters:
        Levels: 18-23
            Kangaskhan (50%)
            Machop (50%)
Zone: Mt. Moon
    Normal Encounters:
        Levels: 05-10
            Clefairy (100%)
Zone: Mt. Moon BF1
    Normal Encounters:
        Levels: 05-10
            Paras (100%)
Zone: Mt. Moon
    Normal Encounters:
        Levels: 05-10
            Geodude (50%)
            Zubat (50%)
Zone: Viridian Forest
    Normal Encounters:
        Levels: 03-06
            Mew (10%)
            Pikachu (45%)
            Bulbasaur (45%)

Hope you enjoy these mods, and feel free to report any bugs you may find in this thread.

UPDATE: New mod
Max Level Shop Sells More Useful Items

This mod replaces some of the Post-game Mart items with new ones that are a great deal more useful. It allows to buy Master Balls by 10000P each, as well as Max Elixers, PP Max, Heart Scales, Max Revives ant the three Golden Berries (PS: due to the name size, the boxes in the mart display empty, but you can still buy them), Replacing Super Potions, the individual status heal items, Super Repels and Super Lures, But keeping the least expensive and the biggest duration versions of those items.

Pokeball
Great Ball
Ultra Ball
Master Ball (10000P)
Potion
Hyper Potion
Max Potion
Full Restore
Max Elixer
PP Max
Heart Scale
Full Heal
Revive
Max Revive
Golden Razz Berry (BUG: Name Not Listed)
Golden Nanab Berry (BUG: Name Not Listed)
Golden Pinap Berry (BUG: Name Not Listed)
Escape Rope
Repel
Max Repel
Lure
Max Lure
X Attack
X Defence
X Sp Atk
X SP Def
X Speed
X Accuracy
Dire Hit
Guard Spec

This mod includes the Moon Stone selling, so you can replace that mod with this one if you want both. I will also keep the Moon Stone singular mod so that you may keep using it if you don't want the (relatively) OP item choices.
 

Attachments

  • Pokemon Lets Go Eevee - Department store sells Moon Stone.zip
    1 KB · Views: 343
  • Pokemon Lets Go Eevee - One-two Pokemon per map.zip
    23.3 KB · Views: 348
  • Pokemon Lets Go Eevee - Evolve into aloan forms v2.zip
    8 KB · Views: 352
  • Pokemon Lets Go Eevee - Max Level Shop sell useful items.zip
    2 KB · Views: 340
Last edited by JPAN,
D

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Thank you OP! I'm very excited about 'One pokemon per route'.

Are these compatible with Reinx CFW?
How do I apply mods to the game?

EDIT: It works with Reinx! If anyone doesn't know you just have to unzip the .rar content into your microSD card Reinx/titles folder. Then, access homebrew loader and enter Reinx Toolkit and make sure you had enablea fs_mitm, loader, pm and sm. Reboot your switch and enjoy!
 
Last edited by ,

DocKlokMan

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I’m interested in the Alola evolution files. I do have a change request. You have Executor evolve into Alola Executor but have Cubone evolve into Alola Marowak and Pikachu into Alola Raichu. Shouldn’t it either be Execute evolves into Alola Executor or Marokwak evolves into Alola Marowak and Raichu evolves into Alola Raichu?
 
Last edited by DocKlokMan,

krazyblunts

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Thank you OP! I'm very excited about 'One pokemon per route'.

Are these compatible with Reinx CFW?
How do I apply mods to the game?

EDIT: It works with Reinx! If anyone doesn't know you just have to unzip the .rar content into your microSD card Reinx/titles folder. Then, access homebrew loader and enter Reinx Toolkit and make sure you had enablea fs_mitm, loader, pm and sm. Reboot your switch and enjoy!

can you confirm the pokes are legit? also what if I didnt finish the main quest yet? what would mess up?
 

DocKlokMan

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Thanks a lot, I was hoping for an Alolan form mod to show up.
Please keep in mind, that in this game Alola form Pokémon can only have 1 of 2 catch locations. Either they are caught in GO Park or they are a traded Pokémon whose original trainer is the appropriate NPC. If you have an Alolan Marowak who's met location is Rock Tunnel then that's not going to be a legit Pokémon.
 

qurao

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Please keep in mind, that in this game Alola form Pokémon can only have 1 of 2 catch locations. Either they are caught in GO Park or they are a traded Pokémon whose original trainer is the appropriate NPC. If you have an Alolan Marowak who's met location is Rock Tunnel then that's not going to be a legit Pokémon.
Yeah, that's fine, I'm banned from online play anyway.
 
D

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can you confirm the pokes are legit? also what if I didnt finish the main quest yet? what would mess up?
I would say they look legit. Remember this:
"All pokemon encontered with this mod should be legit, as they are caught in areas they were already present, with exception of the Fossils, Porygon and Voltorb and Magnemite, that were moved to route 10 for balance.
This mod also allows you to encounter the legendary pokemon in the wild, with 10% chance on the same map they could be caught. Will probably not look legit because of the level caught difference. It also adds mew in Viridian Forest."
 

JPAN

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I’m interested in the Alola evolution files. I do have a change request. You have Executor evolve into Alola Executor but have Cubone evolve into Alola Marowak and Pikachu into Alola Raichu. Shouldn’t it either be Execute evolves into Alola Executor or Marokwak evolves into Alola Marowak and Raichu evolves into Alola Raichu?

I wanted to make Exeggcute evolve, but I thought using two Leaf stones consecutively would be more appropriate than using a different stone on exeggcute.
 

JPAN

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Sorry for the double post, but the Aloan evolution mod was not fully working and had to be updated. Posting here to let you know.
 

InnerMobius

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Knowing about your FR Engine and that you're already working on PLG edits, I see good things coming. I'm gonna have to try these out soon.
 

JPAN

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OK, Added a new mod that allows you to buy some new useful items from the shop in post game, replacing many mid-tier items and individual status healers (as they are obsoleted by the similar priced Full Heal)
 

TaeRulZ

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@JPAN thanks for your mods. Currently using your 1-2 pokemon and it works wonderfully. Just wondering if i want to edit your encounter list/table is there a way to do so?
 

Vel

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I know that you may not care about this anymore since it's been awhile, but is there any way to just get a small mod made where I could buy the masterballs & moonstones?
Also I now Dio made a mod to allow you to catch everything in the wild - but is there any way to make it so we can catch meltan in the wild too?
 
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