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Home/GBA/Pokemon ArcoirisUpdated: 1/9/2026

POKEMON ARCOIRIS DOWNLOADWorth Trying the Demo

DEMOFinalGBA
Pokemon Arcoiris
Final
Difficulty
MODERATE (Tier 2)

Some challenge

Pokémon Arcoiris (Pokemon Rainbow), like many other ROM hacks, retells the Orange Islands anime storyline. It also includes scenes from Pokémon 2000 and other movies. You can choose to play as Ash or Misty and start your adventure with Pikachu in the Orange Archipelago. Will you earn gym badges? Or discover the mysterious Lugia? Find out in Pokémon Rainbow.

📸

FIELD EVIDENCE

3 CAPTURES

OFFICIAL INTEL

  • Region: Orange Archipelago and Vermos region.
  • Available Pokémon: Pokémon up to the 3rd generation.
  • Character: Ash or Misty from the Pokémon Anime.
  • Graphics: Reworked mapping with some new tilesets. Despite not having many new tilesets, it doesn’t feel like you’re playing Pokémon Ruby.
  • Story: New story with completely renewed mapping.
  • New Events: Many new events related to the main hack story.

# TAGS

CompletedGBARubyCompletedEmeraldGBANEW RELEASEEmeraldGBACompletedFireRedGBAEmeraldGBA
CURATOR'S LOG
COMMUNITY #315
DexHunter Ace
DexHunter Ace
LVL. 84 EXPLORER
CompletionistShiny HuntingPokedexPost-Game

"100% Completionist. Has a spreadsheet for Hidden Item locations."

Writer Tone
Manic, obsessive, detailed. Focuses on QoL (Quality of Life) features and availability.
ENTRY DATE: January 9, 2026

Mission Report

"Following is a detailed account of my experience in this ROM hack region..."

Duration35 hours
Threat Levelnormal
Tech Specs
STANDARD GBA
Ideal For
HistoriansExplorers

LOG ENTRY: DAY 01 - VALENCIA ISLAND BEACHHEAD

Touchdown in the Orange Archipelago. My palms are already sweating. The local Pokedex indicates a biodiversity range strictly within the Kanto-Hoenn spectrum (Gen 1-3), but reports of Pinkan Island variants have my completionist cortex firing on all cylinders. A pink Rhyhorn? That is not a Shiny; that is a regional anomaly, and I need it in Box 1, Slot 14.

THE CENSUS: 386 OR BUST?

I have spent 12 hours scanning the tall grass on Route 1 equivalent. Here is the situation: This region operates on a narrative-lock. Because I am forced to pilot the avatar of "Ash Ketchum" (or Misty), the local laws of physics seem to want me to follow a script. This is anxiety-inducing.

However, the biodiversity is... acceptable. You aren't just stuck with Pikachu. I managed to secure a decent roster, but for a true collector, the lack of modern habitat tracking is painful. Living Dex is possible without cheats, but it requires patience that frankly, I usually reserve for soft-resetting Starter Pokemon. You will be hunting blindly without a DexNav. It's old-school tracking. Brutal.

ENVIRONMENTAL HAZARDS & ANOMALIES

The topography has been completely terraformed. This does not resemble the Hoenn region base at all, which is a relief. However, the technology level here is archaic. We are talking pre-Physical/Special split era. If you send a Gyarados into battle, its Water moves are Special. It hurts to watch. It hurts my soul.

FIELD NOTE: The "Crystal Onix" entity is present. Do not faint it. It is a unique specimen. If you crit this thing, reset your device immediately.

THE ANIME PROTOCOLS

The region forces you through the events of the Orange Islands anime and the Pokemon 2000 movie. This is where things get stressful. Legendaries are tied to scripted events.

WARNING: Missable event warning! Save before entering the cave on Shamouti Island. If you mess up the encounter with the Legendary Birds or Lugia during the movie script, they might be gone forever. My save file backup count is currently at 43.

THE VERDICT

I clocked out. 100% completion took me 35 hours. It is a short expedition compared to modern standards. The lack of post-game facilities like a Battle Frontier is a letdown for the competitive itch, but for a "Living Dex" of anime-exclusive variants? It is a unique trophy case.

The region is a time capsule. No fancy QoL. No Infinite Repels. Just you, a bag full of Poke Balls, and the fear of missing a Pink Butterfree.

Final AssessmentTRY DEMO
3/5
💬

Community Voices

5 testimonials
"

"Arcoiris was clearly based on Ruby but with nice graphic changes, made it feel like a new game."

Player #01
"

"One of the earliest Gen-3 Pokémon ROM hacks."

Player #02
"

"You can choose to play as Ash or Misty and start your adventure with Pikachu."

Player #03
"

"The game retells the Orange Islands anime storyline and includes scenes from Pokémon 2000."

Player #04
+ 1 more testimonials from the community
⚠️

Known Issues

4 reported
Community ReportsIssues reported by players. May be version-specific.
  • 1Requires cheats to complete due to corruption or bugs
  • 2Some glitches related to event triggers
  • 3Partial translation causes confusion
  • 4Original project was unfinished and abandoned

💡 TIP: Check for patches/updates. Many issues get fixed in newer versions.

Creator: Angel Asakura

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