This is a ROM hack of Pokémon Red & Blue Versions, made by Mato. This mod is intended to add variety to the earlier parts of the game, more to do after rolling credits, and create a more complete single-player experience. On top of that, new sprites and a few minor alterations to the intended path through the world serve as a fresh coat of paint, without sacrificing the original feel of these classic RPGs.

Features

  • New Pokémon sprites by Cure_Pixel, Ferraz, and SkidMarc25.

  • Shiny Pokémon exist and can be found through any method.

  • All 151 Pokémon obtainable.

  • Several new trades, and most existing ones have been remixed.

  • Tradeback NPC for trade-evolution while playing solo.

  • Fishing has been improved in several ways.

  • Progression through the early-game has been opened up to be less linear.

  • Post-credits boss battles, including Gym Leader rematches, improved Elite 4, and some special secret bosses.

  • Movesets have been updated to include all changes from Yellow Version, as well as some adjustments inspired by Generation 2.

  • Move Deleter and Move Reminder in every Pokémon Center.

  • TMs, Moon Stones, and more are purchasable in special shops.

  • Many quality-of-life improvements. Visit the FAQ to read about them all in detail.

  • Dozens upon dozens of bug fixes.

  • Fully compatible with the original Red, Blue, Yellow, Gold, Silver, and Crystal, as well as Pokémon Stadium 1 & 2.

About

My name is Mato, and I'm the creator of Pocket Monsters: World Adventures. I worked on this project throughout November of 2025, as a break from a larger fan-game project I've been developing.Over the last couple of years I've replayed Pokémon Red & Blue Versions multiple times, and have found myself disappointed with how empty they feel as soon as I beat them. Combine that with the inability to complete the Pokédex alone, and they left me feeling like there was nothing to do afterwards except reset my save and start over again. Thinking on ways to improve this, and discovering the beautiful sprites of Cure_Pixel, I was inspired to start building my own personal "ultimate" Generation One experience.I didn't want PKMN: WoAd to feel like playing a "new and improved" edition of Pokémon Red & Blue Versions so much as I hoped it'd feel like a more complete experience than the games did in the 90's. Design decisions were made with the intent of maintaining the old-school feel of these laid-back handheld RPGs, even to a fault. Because of this, PKMN: WoAd does not change the types of any Pokémon, add or modify any Moves, introduce modern battle mechanics, or even include running shoes. Something as simple as the Bicycle was an important part of the original design behind Pokémon Red & Blue Versions, and I didn't want to change that. (Modern emulators allow for fast-forwarding anyway, for the players who insist upon speeding up the games.)I understand that Pocket Monsters: World Adventures will not be the type of mod that everyone is looking for, but I do hope that other fans who share my particular taste will enjoy it. Players who prefer the simple mechanics and find the slower gameplay charming, but wish there was a little more to do, or more ways to interact with the world, while working towards 100% completion.To anyone who plays this mod, thank you for checking it out, and I hope that you have fun adventuring through the world of Pokémon again.

~ Mato

Credits

Features

Pocket Monsters: World Adventures is a relatively simple mod, compared to many more ambitious ROM hacks. However, there are still many changes from the original Pokémon Red & Blue Versions. I've done my best to detail all of the new features within the game, without spoiling things.For help deciding which of the three versions to play, see Version Differences.

Graphics Update

All 151 species of Pokémon have fresh new sprites created by Cure_Pixel (front-facing sprites), SkidMarc25 (back-facing sprites), and Ferraz (party menu icons).Thanks to CreamElDudJafar for creating a ROM base that ports Game Boy Color support from PKMN Yellow Version. (Check their Readme for their own credits.)Shiny Pokémon now exist, following the same logic as in Pokémon Gold, Silver, & Crystal Versions. A bug involved in the random generation of a Pokémon's DVs has also been fixed, allowing shiny Pokémon to now be found in the wild. Any Pokémon caught as shiny in Pocket Monsters: World Adventures will remain shiny when traded to Pokémon Gold, Silver, & Crystal Versions.

All 151 Pokémon Obtainable

It is possible to complete the Pokédex within a single save file, with no trading necessary. All Pokémon are available in the wild, the Safari Zone, via gifts, or through unique means.
For specific information on obtaining hard-to-find Pokémon, check the FAQ for spoiler-tagged details.

Expanded Early-Game Choices

You have more options early on in Pocket Monsters: World Adventures than you normally would in Pokémon Red & Blue Versions. The variety of wild Pokémon has been increased (including via an early fishing rod), and you'll encounter several new characters willing to trade with you.
The path forward has also been made less linear. You may now backtrack to Mt. Moon from Cerulean City, as well as head south from Cerulean to visit Vermilion City before battling Misty. Catching newly available Pokémon on Routes 5 & 6, or training aboard the SS Anne, might help you earn the Cascade Badge.

Post-Credit Boss Battles

More challenges await after becoming the Pokémon League Champion. Each of the eight Gym Leaders are eager to rematch you, and this time they aren't holding back. Prepare to battle these type-specialists using their ultimate teams.
The Elite Four have also been training hard, preparing for you to return and test your strength against them again. Do you have what it takes to hold your title as Champion, or will your Rival finally surpass you?
There are still some trainers left to challenge. Ones who've long since stepped away from the world of Pokémon battling. Maybe they'll come out of retirement to face you, if you can impress them.

Updated Movesets

All Pokémon have had their movesets updated to match the improvements made in Pokémon Yellow Version. On top of this, a select few Pokémon have had their level-up movesets updated to more closely resemble their Generation 2 movesets. These specific Pokémon were limited to the later areas of the game in Pokémon Red & Blue Versions, but have been made available much earlier on in Pocket Monsters: World Adventures. Without these adjustments, they'd be obtainable around Level 10 but wouldn't learn any new moves until the 30s or 40s.
For any purists, rest assured that any Move a Pokémon can learn in PKMN: WoAd is also legitimately attainable in Pokémon Yellow Version, and the 10-ish that have had their levels adjusted would still be considered legitimate due to link trading being possible with Generation 2. I have made no personal judgement calls, and have remained authentic to the originally designed movesets.

Move Deleter & Move Reminder

Two new NPCs have been added to every Pokémon Center. One will offer to make your Pokémon forget one of its Moves. This allows Moves taught via HMs to be forgotten, which they otherwise cannot. The second NPC is the Move Reminder. This character is able to teach your Pokémon any Move they previously may have learned by leveling up, though he charges a fee to do so.

In-Game Trades

The various NPCs in the game who offer to trade Pokémon have been revamped. Most offer and ask for different Pokémon than they used to. Some trades have been moved, and many new ones have been added. No Pokémon are exclusive to trades, but many can be obtained earlier than usual thanks to these generous NPCs. Chat with many characters to discover all of them!

Tradeback NPC

Pokémon which evolve via trading are no longer restricted from solo-play. In Cinnabar Labs, there is a strange scientist with a new invention. It's a Link Cable that lets trainers "trade" by themselves. Put your Pokémon in and it'll come back out to you, as if you traded with yourself. This lets you evolve your Pokémon without needing a second player.

Renewable Resources

Most items that originally were limited in number are now infinitely available.
There's a new TM shop on the 3rd floor of the Celadon Dept Store, with a second opening at the same counter once you've beaten the game.
Moon Stones can be bought from a collector, though he does charge a premium.
Even rare Pokémon be obtained in multiples, with enough effort. The only Pokémon to remain one-of-a-kind are the Legendaries. Search far and wide to find them all!

Quality of Life Features

  • Pressing B during battle selects "Run".

  • The game saves more quickly.

  • Items have descriptions, including TM Move effect explanations.

Many Bug Fixes

Pokémon Red & Blue Versions have a strong reputation for being quite buggy games. Though most players likely wouldn't notice it while playing, the Internet age has made many people very aware of how many odd, obscure, and potentially annoying bugs exist within the code of these games. Many detrimental bugs have been fixed in Pocket Monsters: World Adventures, with only a select few fan favorites left intact for players who wish to engage with them.
The infamous 1/256 Miss bug has been fixed. Focus Energy properly increases your Critical Hit rate, instead of decreasing it. Stats no longer get reset when using the X items. There are truly far too many bug fixes to list here, so please read the included Readme.txt in your download if you're interested.
Due to their popularity among fans, I have intentionally left the PokéDoll Ghost skip and the "Trainer Fly Glitch" fully intact. The Missingno glitch, popular as it is, has been fixed as a consequence of fixing many underlying issues with the original game engine.

Full Compatibility with the Original Games

Pocket Monsters: World Adventures is fully compatible with the original Red, Blue, Yellow, Gold, Silver, and Crystal, as well as Pokémon Stadium 1 & 2.
This means that you can battle and trade over a Link Cable with Pokémon Red, Blue & Yellow Versions, as well as trade via the Time Capsule in Pokémon Gold, Silver, & Crystal Versions.
Any bug fixes made involving the battle system are ignored during Link Battles, in order to maintain compatibility with the original games. If the bug fixes remained active during Link Battles, it's possible for the two games to fall out of sync with each other, and soft-lock the battle.
If you have a Nintendo 64 and Transfer Pak, you can also use the Pokémon you train in Pocket Monsters: World Adventures to battle in Pokémon Stadium 1 & 2, organize your Pokémon and items at the Pokémon Lab in those games, or play in the GB Tower.

Version Differences

Pocket Monsters: World Adventures is available in three versions. Red, Blue, and Green. Each version of PKMN:WoAd is functionally identical. The only changes are cosmetic, such as the title screen colors and the Pokémon displayed there.

  • PKMN:WoAd Red Version uses the same tilesets as the Pokémon Yellow Version.

  • PKMN:WoAd Blue Version is the closest to the original international releases. It uses the same tilesets as the Pokémon Red & Blue Versions most people are familiar with.

  • PKMN:WoAd Green Version uses the same tilesets as the original Japanese Pokémon Red & Green Versions.

  • Each version has a different design for the slot machines at the Game Corner, as well as a unique Super Game Boy border when played on a SNES or the GB Tower in Pokémon Stadium.

Screenshots of PKMN:WoAd Red, Blue, and Green Versions, showing off the slot machine and border differences.
Screenshots of PKMN:WoAd Red, Blue, and Green Versions, showing off the slot machine and border differences.
Screenshots of PKMN:WoAd Red, Blue, and Green Versions, showing off the slot machine and border differences.

Click for Full-Size

Q. Where do I get [Item]?

  • Old Rod: Viridian City, from the Fishing Guru near the small pond.

  • Good Rod: Vermilion City, from the house next to the Pokémon Center.

  • Super Rod: Fuchsia City, from the eldest Fishing Guru brother.

  • Moon Stones: Can be purchased on Route 4, on the Cerulean City side of Mt. Moon.

  • TMs: All of their usual locations, plus some new shops.

  • Master Ball: The usual location, at Silph Co. It is one-of-a-kind.

Q. Where can I find [Pokémon]?

Pocket Monsters: World Adventures is designed in a way that you should have seen almost every species of Pokémon by the time you roll credits. I wanted to make sure it was difficult to be left entirely unsure of how to obtain a Pokémon. Due to this, I recommend you try to find the Pokémon you're looking for using the tools available to you within the game (Pokédex), before coming here for spoilers. However, if you still need help tracking something down, just click the spoiler tags below to reveal their information.

  • Bulbasaur, Charmander, and Squirtle are found in the Safari Zone. Search carefully in the various different areas.

  • Eevee is found on the roof of a building in Celadon City, as usual, and can be bought at the Game Corner with Coins.

  • Hitmonlee and Hitmonchan can be won at the Fighting Dojo in Saffron City, as usual, though you may only take one. The other will be available for trade on Cinnabar Island. Also, they both can be found in Victory Road, if you're lucky.

  • Kabuto, Omanyte, and Aerodactyl can be obtained by reviving their fossils on Cinnabar Island, as usual. The fossils can be found in their usual locations, as well as purchased from a Rocket Grunt in the Game Corner after obtaining the Silph Scope from the Rocket Hideout.

  • Snorlax can be found in the same two locations as usual, as well as at a 1% rate in the basement of Unknown Dungeon.

  • Articuno, Zapdos, Moltres, and Mewtwo are found in their usual locations. Save before battling them, as you only get one chance at each of them.

  • Mew can be found via the famous "Mew Glitch", but also via a new encounter. Details on this are too significant to spoil, but playing past the credits will lead you to it.

Q. Can I get the other Starter/Eeveelution/Hitmon/Fossil Pokémon, besides the one I picked?

Yes. All 151 Pokémon are obtainable in the game, regardless of what choices you make, or which version you're playing. There are also no altered encounter rates between the three versions. The only Pokémon that are restricted to only 1 per save file are the Legendary Pokémon: Articuno, Zapdos, Moltres, Mewtwo, and Mew. Every other species can be obtained infinitely, with enough effort.

Q. How can I evolve my Graveler/Haunter/Machoke/Kadabra without a second player?

On Cinnabar Island, inside the lab where you can get fossils revived, there's another scientist who claims to have a weird machine that works like a circular Link Cable. He can trade your own Pokémon to you, causing any species that evolves via trade to evolve without the need for a second player.

Q. How can I make my Pokémon forget an HM move? (Cut, Strength, etc)

Every Pokémon Center has an NPC who can delete unwanted moves from your Pokémon. This is the only way to remove an HM move, as they cannot normally be forgotten in place of a new move.

Q. How can I teach my Pokémon a move it used to know?

If the move was originally learned by leveling up, or the Pokémon already knew it when you caught it, the Move Reminder in any Pokémon Center can make your Pokémon learn it again, for a small fee.
If the move was learned by a TM, you'll need another copy of that TM. All TMs can be bought, as explained below.

Q. Where can I buy extra TMs?

All TMs are purchasable in some way. The original TM shop in the Celadon Dept Store 2F still exists, with its usual inventory. In addition, the 3rd Floor has a new TM shop offering several TMs for sale. The man next to this clerk will give you a free TM for Counter, and suggest you return after beating the game. When you do, he will sell most of the remaining TMs.
The Game Corner Prize Room will offer TMs for Double-Edge, Selfdestruct, and Explosion in exchange for Coins, only after defeating Giovanni in the Rocket Hidehout below the Game Corner.
Finally, all TMs that the Gym Leaders offer as rewards can be bought from a man in the north-west house in Cerulean City (where the Badge expert lives) after becoming Champion.

Beat the game? Click here!

Secrets & Spoilers

So, you've explored the world, collected all 8 Gym Badges, become the Pokémon League Champion, and maybe even caught all 150 Pokémon. Wait, 150? Aren't there 151? Yes, it's true! The mythical 151st Pokémon, Mew! Let me tell you, it's no myth. If you've yet to find it for yourself, read on to learn more about the rarest Pokémon of all time, as well as the strongest trainers in the world! What? You thought just because you're the Champion that you're the best? You still have a lot left to discover in this world. Your adventure isn't over yet, trainer.

Turn back unless you've beaten the game!
What follows is for Pokémon Champions only!

The World's Strongest Pokémon

In the abandoned Cinnabar Mansion, there are the remains of old journal entries, partially burned in an old fire. They talk about a rare Pokémon called Mew. The writer mentions how Mew lead to the creation of a new Pokémon that they named Mewtwo. A Pokémon too powerful to control.
As the newly crowned Pokémon League Champion, you are granted access to the Unknown Dungeon. A frightful cave just above Cerulean City. This cave is filled with strong and terrifying wild Pokémon, and it's rumored to be where Mewtwo has made its home.

What? You already knew that? Well buckle up, because what follows is brand new to Pocket Monsters: World Adventures!

Rumbling Rematches

Do you remember any Gym Leaders mentioning something like "Come back and battle me again once you become Champion"? It's time for a victory lap!
Take on all eight Gym Leaders in rematches, but be warned, they aren't going to be using the same Pokémon as the first time you battled them. Now that you're the Champion, they'll each face you with their ultimate teams! Can you handle these type-specialists at their peak?
After you manage to defeat all eight Gym Leaders a second time, you should pay a visit to the Indigo Plateau.
(You can rematch the Gym Leaders as often as you'd like from now on.)

Worthy of a Champion

Things have changed at the Indigo Plateau since you became Champion. While you were fighting through rematches with the Gym Leaders, the Elite Four have been training, and they aren't the only ones. Your Rival isn't sure you have what it takes to hold the title of Champion. Can you defeat Round 2 of the Elite Four, and defend your title?
(The Elite Four will use their Round 2 teams from now on, any time you challenge their gauntlet.)

The Authority on Pokémon

You've done it! Despite their best efforts, the Elite Four remains no match for you! Watching you and your Rival battle even inspired Professor Oak. After congratulating you on another victory, he asks you to visit him at his Lab. Best not keep the old man waiting.
When you started your adventure, Oak mentioned how he was a Pokémon trainer in his youth, but had long since hung up his hat. However, watching you and your Rival continue to grow alongside your Pokémon has inspired him. Maybe he's not too old for some battling. Will you do him the honor of facing him and his team?
(You may battle Oak again each time you defeat the Elite Four Round 2.)

The Mythical 151st Pokémon: Mew

After defeating the old Professor, he mentions that you've taken his place as the second strongest Pokémon Trainer. What does he mean? If he was second, then who's the best? More importantly, what was that Mew he had!? Now that you've battled it, you have Mew's data partially registered in your Pokédex. It's time to go find one for yourself!
Follow your Pokédex to the area it says Mew can be found. A mysterious Pokémon like Mew might be hiding someplace unexpected. Search high and low until you find it!

The Strongest Pokémon Maniac

There is one person who will be even more impressed by your Mew than Professor Oak. The number one strongest trainer in the world, and a true Pokémon Maniac; Bill.
Visit him at his sea cottage, at the northernmost point of Route 25. You can either bring Mew with you, or just show him the data in your Pokédex. He'll no doubt be impressed that you caught such a rare Pokémon. So impressed, in fact, that he'll ask to battle you to see what makes you so special. Prepare yourself, as this is the trainer that Oak considered to be the best of all time.
Bill's team is comprised of the rarest Pokémon in the world! On top of that, they're all fully trained to Level 100! This will be the toughest battle you've ever faced, but if you win you can finally consider yourself to be the world's strongest Pokémon trainer!