Pokemon Crystal Advance Redux ROM

Pokemon Crystal Advance Redux is a GBA ROM Hack by Arnie on Pokemon Fire Red in English. It was last updated on November 08, 2026.

Also, be sure to check out Pokemon Stone Dragon 2.

Description

Pokemon Crystal Advance Redux is a continuation/alternate version of Pokemon Crystal Advance. This hack is the culmination of everything that has been created within the binary FireRed hacking community. Using HexManiacAdvance as the tool of choice, with a shedload of custom machine code modifications.

Features

• The Complete Experience: This game can be played from start to finish, from picking your Pokémon to beating Red. Aside from some other features and additions I am currently working on, it is fully enjoyable
• Character Choice: You are able to select between 9 different characters to play the game with. Each protagonist from the first 4 generations of mainline games, both male and female. Plus a bonus option where you can play as Ash Ketchum.
• GBA Compatibility: This game is regularly tested on real GBA hardware to ensure that it works correctly for those of you (and myself) who occasionally like to play it as authentically as possible.
• Day, Night, Seasons: The environment will change depending on what time of day/month it is, to keep things fresh. The DNS has seen some improvements since this initial post. The game now has a fully implemented night lighting system.
• High Quality Arenas: I have worked hard to create a multitude of battle backgrounds, some modified from existing public works, some of my own creation. Static Legendary encounters have more gravitas by having their own unique battle background, as well as many more. Outdoor backgrounds also change based on time of day, and what season you are playing in.
• Battle system speed improvemets: Scroll-in animations removed for all trainers and wild pokemon, wait time between actions have been vastly shortened, dialogue loads quicker. All adds up to a far better than stock experience, even on real GBA hardware.
• Type chart improvements: Includes the addition of the Fairy Type. This change also affects Goldenrod Gym which in-turn has become a dual Normal/Fairy type Gym. This includes most Fairy type moves from gen 6 and the inclusion of Sylveon as an Eeveelution.
• Pokémon Migration: Creatures from the 3rd and 4th generations are a-plenty here, as well as regional variants and evolutions of Gen 1-4 Pokémon from newer Generations. Want to do a solo run with Dudunsparce? Now you can! In total there are 553 Pokémon visible in the Pokédex, with more obtainable via the Form Changer.
• Learn-set improvements: All Pokémon have had moveset improvements, largely based on moves obtained within other vanilla Pokémon games, a few have been…more creative…And have added moves based on moves obtainable through other Pokémon franchise games (Wobuffet obtains Psywave and Rock Smash based on moves used in the mystery dungeon games and TCG, for example) – This was heavily inspired by Drayano’s hacks, of which I am a huge fan of
• Item availability improvements: Gone are the days where you have to wait 16 hours just to obtain some Leppa Berries; Ethers and Elixirs are obtainable within the Dept Stores and Pokémon League. Poéballs are cheaper to buy, PP Ups are purchasable from Dept Stores, Vitamins are cheaper to buy. All Wild Pokémon have had their item tables improved upon. Evolution items are attainable this way, However they are also purchasable. Additionally, the Gen 6 version of the EXP All system is included as a key item for you to collect, being ablke to enable/disable it at will.
• Stat EXP system: The EV training system has been tweaked to recreate the old Gen1/2 Stat system, whereby you can get max EVs in every stat, not just the current maximum of 2. This can be achieved either through Vitamin use or pure battling, it does not matter. the Power items are also available for direct EV training regardless of encounter.
• New/Reinstated areas: Areas that were available in Pokémon Liquid Crystal have returned, meaning extra places to explore. More to come on these in the future. Sadly the Orange Islands from Pokemon Liquid Crystal have been removed in their entirety.
• New TMs and Move Tutors: Some old, less useful TMs have been replace with more useful ones. Say hello to Avalanche, Play Rough, Drain Punch, Drain Kiss and Dive. Every Gym also has a learnable Tutor move via the Champ Guy upon completion
• New Items: Gen 6 EXP share? Check! Portable PC? Check! Nature Mints and Ability Pills? Check! An item that allows for HM-less travel? Check! Items that allow you to max out your IVs and EVs? Check too! (The last 2 are late game unlocks…)
• Higher level Curve: trainers will be slightly harder vs the vanilla games, with expanded teams. By the time you get to the elite four, trainer levels will be on average 10 higher than vanilla Crystal, and 20 by the end of the game. Kanto has been re-blanced to actually be fun to do battles in, and not feel like a chore.
• Double the trouble: Quite a few trainers are now double battles. Every Gym Leader is a double battle
• Obedience system changes: Happiness now affects all Pokémon in multiple ways. Happiness being too low? Good luck using it reliably as they will disobey. A high happiness will give you bonus EXP in battles.
• Placement differences: There will be some things that are still the same but in slightly different areas. I will leave these to be discovered.
• Evolution Changes: I have turned most single use held items into assistive evolution items. Pokémon that required trading now simply need to hold one of these associative held items and level up in battle. Eevee is now a purely stone evolving Pokémon, for example
• Higher Quality Audio samples: You may notice that Pokémon sound different, a bit more realistic? This is because I painstakingly ripped and recreated the sounds used in Pokémon Stadium 2 and inserted them into this ROM. Gen 3 and 4 Pokémon use their Gen 6 modulated sounds. These are encoded in a higher bitrate than standard also to give a more immersive experience. IDK about you but I was not a fan of the old square wave audio.
• Increased Shiny Odds: Gone are the days of you searching for 84 years just to get a rattata. Shiny odds are 1/256. Furthermore within Celadon Game Corner there is a machine that will generate a random Shiny Encounter for you to catch (this costs quite a few coins, mind)
• Fully Implemented Dive System: A complete implementation of Dive, fully scripted (no ASM/C# injection involved)
• Fully Functional GB Player: Remember when the GB Player in Liquid Crystal played a bunch of sounds with missing channels? Pepperidge Farm remembers; and so do I. Which is why I re-coded an entire section of the music bank handler, and then went through and remastered most of the music in the game. As of 18/4/24 (or 4/18/24 for those across the pond) every single GBA track in the game except for 2 has an accompanying GB audio variant – even then that is soon to change.
• Following Pokemon: Yeah you read that right; EVERY single Pokémon in this hack can now follow you around in the overworld. This could possibly be the first Vanilla Binary hack to get this done, but it is here in full, alongside specific special interactions with them. These are all custom drawn full 3 frame (still based on the original HGSS ones) follower sprites, so motion is as fluid as the player movement.
• Player Bedroom Decorations: Pokémon Gold/Silver/Crystal allowed you to decorate your bedroom with various ornaments and things. I have recreated that experience here, with over 130 different items to purchase and unlock throughout the game.
• Hidden Grottos: The feature that debuted in Gen 5 is also here, thanks to the engine powering the following pokémon system.
• Basic Tweaking: This game now features a fleshed out Level Cap system with multiple difficulty options to choose from, soft Nuzlocke mode (it is nothing more than blocking pokemon capture after catching one in a route).
• Fully Functional PokéRadio: This game has a radio that allows you to play music from multiple regions, and also recreates the interaction with Snorlax in Kanto.
• And Many, many More…

Changelog

08-11-26

• Moved the Difficulty and gym battle item use to the Options menu.
• The current active weather now shows as an icon on the top right of the screen during battles.
• AI Assisted Permanent Nuzlocke Mode has been added. this can only be done with a new save file and must be enabled before catching a Pokémon from within the options menu. The game keeps track of where you caught a Pokémon and gives you an indicator within the map itself to show when you have caught a Pokémon there, Gift Pokémon and Legendaries do not count towards this counter – neither do seasonal encounters.
• The game will now ask you if you would like to enable Nuzlocke mode from the intro sequence
• the “Game Tweaks” menu has been removed from the Bedroom PC due to all of the options being embedded within the options menu.
• Abra and Kadabra’s follower colours have been tweaked slightly to make it more obvious
• Fixed issue whereupon the Map location storage data was checking for direct stored Index IDs instead of Pokédex number for the caught data. This affected any Pokémon that is in Gen 3 and above
• sorted out npc data inside one island buildings
• added trainer data to one island and kindle road

05-11-26

• Fixed issue I caused where the “ke” symbol was overwritten (font symbols are used to bypass the name length limits)
• Deleted 4kb of what seems like unused image data. Please let me know if anything breaks but it shouldn’t. There was no data linkage indicators
• Aqua Jet’s move animation has been restored
• AI Assisted Electro Ball and Gyro Ball now work correctly. Electro Ball was always outputting 150 power and Gyro Ball was outputting 1 power with no hook to check for speed variations…
• Electro Ball’s move description has been corrected
• mt ember interior wild encounters added
• mt ember interior follower logic added
• Fixed issue whereupon using Raging Bull and then getting a level up would cause the game to crash.
• New Feature AI Assisted Map based Pokémon location menu: While I liked the wildlife boards, they were quite inconvenient to use. Now, though, you can access all wild encounters and their encounter chance right from the map. This works on the PokéMap and in the “Open Map” section of the Poké Ride item. You can also see whether you have caught the Pokémon or not in the route.
• Fixed ladder issues inside Union Cave
• Removed all of the wildlife boards. They are no longer needed. Also removed the board disabler option from the bedroom PC

04-11-26