Pokemon Venom Purple (GBA)

Fly May 28, 2026

Pokemon Venom Purple – Expanded Kanto Enhancement Hack With Mega Evolution, Regional Forms, and Rebalanced Gen 1 Gameplay

Pokemon Venom Purple Cover

Game Information

Hack Name: Pokemon Venom Purple
Original Game (ROM Base): Pokémon FireRed
Hack Status: Completed / Ongoing Updates Planned
Language: English
Content Type: Enhancement Hack, Expanded Kanto, Regional Forms, Mega Evolution, Difficulty Rebalance, QoL, Vanilla+

Table Of Contents

About This ROM Hack

Pokemon Venom Purple is a heavily expanded FireRed-based ROM hack built around the idea of modernizing Kanto while still keeping the overall structure and identity of the original Generation 1 experience intact. Instead of turning Kanto into a completely different game, the project focuses on expanding what already existed through Mega Evolution, regional forms, improved balancing, expanded locations, updated mechanics, and broader Pokémon variety while still feeling recognizable to longtime fans of classic Pokémon.

One of the hack’s defining design choices is that the roster remains centered almost entirely around Generation 1 Pokémon and their related evolutions or regional variants. That means you will encounter Pokémon like Sylveon, Perrserker, Galarian Weezing, Alolan Marowak, and Annihilape, but only because they connect directly to original Kanto species. There are no Fakemon, and the creator specifically states that the game was designed to preserve an authentic Pokémon feel.

The hack also puts major emphasis on improving weaker Pokémon and making more teams viable. Many underused Pokémon received buffs through better learnsets, earlier availability, typing changes, ability changes, stat shifts, and expanded move coverage. The inclusion of the Physical/Special Split further modernizes combat and allows many classic Pokémon to function more effectively than they did in vanilla FireRed.

Several areas of Kanto and the Sevii Islands have been expanded with entirely new sections, encounters, trainers, and post-game rematches. The creator also added quality-of-life systems including easier evolution methods, purchasable evolution stones, EV and nature management systems, reusable competitive tools, and modern Poké Ball availability.

This was also the developer’s first ROM hack project, which gives the game a very passion-driven feel throughout. The project openly credits Complete FireRed Upgrade (CFRU), DPE, HexManiac Advance, and several community creators for helping make many of the modern systems possible.

Key Features

  • Expanded Gen 1-Focused Pokédex: The game includes Pokémon from later generations only if they are directly connected to Kanto species, such as evolutions or regional variants. This keeps the roster feeling authentic to Generation 1 while still modernizing team variety.
  • Mega Evolution: Mega Evolution is fully implemented, with Mega Stones available later in the game and additional Mega-focused encounters added throughout Victory Road and rematches.
  • Regional Forms Integration: Alolan and Galarian forms are naturally integrated into Kanto and the Sevii Islands rather than feeling tacked on. Pokémon like Alolan Marowak, Galarian Weezing, and Galarian Legendary Birds are obtainable through specific locations and evolution methods.
  • Physical/Special Split: Modern battle mechanics are included, allowing many classic Pokémon to become far more viable than they were in the original FireRed.
  • Massive Move Rebalancing: Hundreds of move changes were made across the game. Accuracy, power, typing, effects, and utility were adjusted to make older moves more useful and modern-feeling.
  • Pokemon Rebalancing: Many weaker Pokémon received improved stats, typings, abilities, move pools, or earlier availability to improve overall roster balance.
  • Custom Ability Changes: Certain Pokémon received entirely new abilities, including weather-setting legendary birds and improved hidden abilities for older species.
  • Expanded Kanto Areas: Multiple classic locations now feature additional sections, hidden zones, stronger encounters, and new exploration rewards.
  • New Legendary Locations: Legendary encounters have been redistributed and expanded, including Galarian Legendary Birds and a catchable Mew encounter.
  • Modern Evolution Methods: Trade evolutions were removed in favor of stones, held items, or Link Stones to make single-player progression smoother.
  • Expanded Celadon Department Store: The department store now functions almost like a modern competitive utility center with EV berries, Ability items, Nature systems, Poké Balls, Mega Stones, vitamins, and more.
  • Gym Leader and Elite Four Rematches: Post-game rematches significantly upgrade major trainer teams and provide stronger late-game battles.
  • Expanded Victory Road: Victory Road now contains additional trainers, type specialists, Mega Evolution battles, and stronger evolved Pokémon not used elsewhere in the game.
  • Regional Evolution Logic: Pokémon caught in certain areas evolve into regional variants depending on where they were obtained, adding unique progression mechanics.
  • QoL Improvements: Modern conveniences include purchasable competitive items, updated evolution systems, expanded Poké Ball access, improved breeding functionality, and easier team customization.
  • Difficulty Enhancement: Most trainers have updated or expanded teams, creating a noticeably harder experience than vanilla FireRed without becoming a full Kaizo-style hack.

Known Bugs & Issues

  • The provided information does not mention any major known bugs, but the creator states that additional balancing updates and bug fixes are planned for future versions. Since this was the developer’s first ROM hack project, players may occasionally encounter minor inconsistencies or unfinished balancing elements.
  • The post-game also appears to still be evolving, with possible future content planned including a Porygon/Missingno-related event.

Screenshots

Pokemon Venom Purple SS01Pokemon Venom Purple SS02

Download Links

Mediafire

Documentation

Pokemon Ability Changes:

  • Articuno: Pressure -> Snow Warning
  • Cleffa Line: 
    • Magic Guard -> Competitive
    • Friend Guard (Hidden) -> Fairy Aura
  • Goldeen Line: Swift Swim is now the Hidden Ability and Lightning Rod is a regular
  • Golem: Sand Veil -> Sand Stream
  • Igglybuff Line: 
    • Competitive -> Defiant
    • Friend Guard (Hidden) -> Fairy Aura
  • Moltres: Pressure -> Drought
  • Sandshrew Line: 
    • Sand Rush +-> Regular Ability
    • Rough Skin -> Hidden Ability
  • Zapdos: Pressure -> Drizzile

Pokemon Type Changes:

  • Added Dark type to Ekans and Arbok
  • Added Fairy type to Happiny, Chansey, and Blissey
  • Added Ground type to Politoed

Pokemon Stat Changes:

Swapped the Attack and Special Attack stats for the following Pokemon:
  • Pidgey
  • Pidgeotto
  • Pidgeot
  • Nidoran (Female)
  • Nidorina
  • Nidoqueen
  • Psyduck
  • Golduck
  • Koffing
  • Weezing

Pokemon Evolution Changes:

Level Changes:
  • Alolan Grimer evolves into Alolan Muk at lvl 32 instead of lvl 38
  • Ekans evolves at lvl 30 instead of lvl 22
  • Goldeen evolves at lvl 28 instead of 33
  • Grimer evolves into Muk at lvl 32 instead of lvl 38
  • Horsea evolves into Seadra at lvl 28 instead of 32
  • Kabuto evolves at level 32 instead of 40
  • Koffing evolves into Weezing/Galarian Weezing at lvl 32 instead of lvl 35 (Galarian Weezings
  • come from Koffings caught in the Sevii Islands)
  • Magikarp evolves at lvl 25 instead of 20
  • Omantye evolves at level 32 instead of 40
  • Poliwag evolves at lvl 18 now instead of 25
  • Rhyhorn evolves at level 36 instead of 42

Stone Evolutions: Added Methods
  • Alolan Meowth -> Alolan Persion [Dusk Stone]
  • Chansey -> Blissey [Shiny Stone]
  • Eevee 
    • -> Espeon [Dawn Stone]
    • -> Glaceon [Ice Stone]
    • -> Leafeon [Leaf Stone]
    • -> Sylveon [Shiny Stone]
    • -> Umbreon [Dusk Stone]
  • Golbat -> Crobat [Dusk Stone]
  • Pikachu -> Alolan Raichu [Dawn Stone]

Pokemon Catch Rate Changes:

  • Articuno [3->10]
  • Galarian Articuno [3->10]
  • Galarian Moltres [3->10]
  • Galarian Zapdos [3->10]
  • Mew [45->10]
  • Mewtwo [3->10]
  • Moltres [3->10]
  • Zapdos [3->10]
Pokemon Moves Changes: Changes made to moves from DPE
  • - Absorb [20->30 BP, 20-> 30 PP]
  • - Acid [Lower SP Def Chance 10->20%]
  • - Acid Spray [40->50 BP]
  • - Air Cutter [55->70 BP, 95->100 Acc]
  • - Air Slash [75->90 BP, 95->100 Acc, Flinch Chance 30->20%]
  • - Aqua Tail [90->70 BP, 90->95 Acc]
  • - Blizzard [110->120 BP, 10->20% Freeze Chance]
  • - Bone Club [65-50 BP, 85->100 Acc]
  • - Bone Rush [25x2-5->20x2-5 BP, 90->100 Acc]
  • - Bonemerang [50x2->45x2, 90->100 Acc]
  • - Bounce [2-turn->1-turn, Paralyze chance 30->20%]
  • - Brick Break [75->80 BP]
  • - Bubble [20->35 BP]
  • - Bug Bite [60->50 BP]
  • - Clamp [85->100 Acc]
  • - Covet [60-50 BP, Normal -> Fairy type]
  • - Crabhammer [100-110 BP, 90->100 Acc]
  • - Cross Poison [70->65 BP, High Crit Poison Chance 10%->100%]
  • - Cut [Normal-> Bug, 50->60 BP, 95->100 Acc]
  • - Dig [2-turn->1-turn, 80->60 BP, 2-turn->1-turn]
  • - Disarm Cry [40->60 BP]
  • - Dive [2-turn->1-turn, 80->55 BP]
  • - Dizzy Punch [Confusion Chance 20-40%]
  • - Double Hit [35->30 BP, 90-100 Acc]
  • - Drain Kiss [50->65 BP]
  • - Drill Peck [80->90 BP, Add Flinch Chance 20%]
  • - Drill Run [80->85 BP, 95->100 Acc, Added 20% Flinch Chance]
  • - Ember [40->35 BP]
  • - Fell Stinger [50->60 BP]
  • - Fiery Wrath [Flinch Chance 10->20%]
  • - Fire Blast [110->120 BP, 85->70 Acc, Burn Chance 10->20%]
  • - Fire Spin [15->35 BP, 70->100 Acc]
  • - Firepunch [75->80 BP]
  • - Flame Charge [55->60 BP]
  • - Flame Wheel [60->55 BP]
  • - Fly [2-turn->1-turn, 90->80 BP, 95->100 Acc]
  • - Freeze Glare [Freeze Chance 10->20%]
  • - Future Sight [120->140 BP]
  • - Giga Drain [75->80 BP, 5->10 PP]
  • - Gunk Shot [80->70 Acc] Poison Chance 30%->100% Bad Poison Chance]
  • - Heat Wave [90->100 Acc, Burn Chance 10->30%]
  • - Hurricane [110->120 BP, 85->70 Acc, Paralyze Chance 30->20%]
  • - Hydro Pump [80->70 Acc]
  • - Hyper Fang [90->100 Acc]
  • - Ice Shard [40->30 BP]
  • - Icepunch [75->80 BP]
  • - Icicle Crash [85->90 BP, 90->100 Acc, Flinch Chance 30->20%]
  • - Iron Tail [75->85 Acc]
  • - Leech Life [20->25 BP]
  • - Leech Seed [90->100 Acc]
  • - Mega Drain [40->60 BP, 10->20 PP]
  • - Megahorn [85->70 Acc, Added Lower Target Speed Chance 20%]
  • - Metal Claw [95->100 Acc]
  • - Mud Bomb [65->70 BP, 85->100 Acc]
  • - Mud Shot [55->50 BP, 95->100 Acc]
  • - Mud-Slap [20->30 BP]
  • - Muddy Water [85->95 Acc]
  • - Play Rough [90->100 Acc]
  • - Poison Fang [15->20 PP, Poison Chance 30->100%]
  • - Poison Gas [55-100 Acc]
  • - Poison Jab [80->90 BP, Poison Chance 30->100% High Crit BadPoison Chance]
  • - Poison Powder [75->100 Acc]
  • - Poison Sting [15->35 BP, Poison Chance 30-50%]
  • - Poison Tail [50->75 BP, Poison Chance 30->100%]
  • - Power Gem [80->90 BP, Add 20% Lower Sp Def]
  • - Razor Leaf [95->100 Acc]
  • - Razor Wind [80->130 BP, Normal->Flying Type]
  • - Rock Slide [75->80 BP, 90->100 Acc, Flinch Chance 30->20%]
  • - Rock Throw [90->100 Acc]
  • - Sand Tomb [15->35 BP, 70->100 Acc]
  • - Scald [Burn Chance 30->40%]
  • - Shadow Bone [85-90 BP]
  • - Shadow Claw [70->80 BP]
  • - Shell SideArm [Poison Chance 10%->100% Bad Poison Chance]
  • - Sky Attack [2-turn->Skip Next Turn]
  • - Sludge [65->50 BP, Poison Chance 30->100%]
  • - Sludge Bomb [Poison Chance 30->100% High Crit BadPoison Chance]
  • - Sludge Wave [Poison Chance 10->100% High Crit BadPoison Chance]
  • - Smog [20->30 BP, 70->100 Acc, Poison Chance 40->50%]
  • - Snarl [55->60 BP, 95->100 Acc]
  • - Spark [Paralysis Chance 30->10%]
  • - Spirit Break [75->70 BP]
  • - Stone Edge [100->110 BP, 80->70 Acc, High Crit-> Flinch Chance 20%]
  • - Submission [80->100 BP, 80->100 Acc]
  • - Thunder [110->120 BP, Paralysis Chance 10->20%]
  • - Thunderpunch [75->80 BP]
  • - Toxic [90->100 Acc]
  • - Toxic Spikes [Poison->BadPoison]
  • - Vine Whip [35->45 BP]
  • - Water Gun [40->45 BP]
  • - Water Pulse [60-70 BP]
  • - Whirlpool [15->35 BP, 70->100 Acc]
  • - Wild Charge [90-100 BP]
  • - X-Scissor [80->70 BP]
  • - Zen Headbut [80->85 BP, 90->100 Acc]

Developer Information

Developer / Team: Repguy27
Credits: 

  • Haven for HexManiac Advance and HUBOL
  • Skeli and Ghoulslash for Complete FireRed Upgrade and DPE
  • YeahPotato and DontJoelMe for technical assistance
  • Defa for the Nature Changer Routine
  • SageDeoxys for Galarian Legendary Bird overworld sprite foundations
  • Pokemon Unbound contributors for Nidoking title screen sprite assets
  • Studio Zero for Poison Bubble title assets
  • diegoisawesome for GBA Intro Manager
  • SmithPlaysPokemon for inspiration
  • Additional contributors from the HexManiac Advance Discord community

Source & References

Official Thread / Website: Pokecommunity

Frequently Asked Questions

Q: What kind of ROM hack is Pokemon Venom Purple?
A: It is a FireRed enhancement hack focused on modernizing Kanto while preserving the feel of classic Generation 1 Pokémon games. It adds Mega Evolution, regional forms, balance updates, expanded exploration, and modern mechanics.

Q: Does Pokemon Venom Purple include Fakemon?
A: No. The hack specifically avoids Fakemon and only includes official Pokémon species, regional forms, and evolutions connected to Generation 1 Pokémon.

Q: Does the game feature Alolan and Galarian Pokémon?
A: Yes. Several Alolan and Galarian forms tied to Kanto Pokémon are available, including regional evolutions and Legendary Birds.

Q: Is the difficulty harder than normal FireRed?
A: Yes. Most trainer teams have been upgraded or expanded, and Gym Leaders become much more challenging, especially during rematches.

Q: Who is this ROM hack for?
A: This hack is ideal for players who love classic Kanto but want a more modern experience with newer mechanics, better balance, stronger battles, regional forms, and expanded exploration without completely abandoning the original FireRed identity.

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