Pokemon Crystal Ultimate
Pokémon Crystal Ultimate expands Crystal with a new Kanto story, 251 obtainable Pokémon, 90-plus Trainers, rematches, side quests, and rebalanced battles.
- Huge Pokédex
- Quality of life
- Status
- Completed
- Plays on
- PC · Android · iPhone (emulator)
- Base game
- Pokémon Crystal
- Version
- v1.0.7.5
- Made by
- Major Agnostic
About Pokemon Crystal Ultimate
A new Kanto storyline, more than 90 added Trainers, all 251 Pokémon, and rebalanced battles make Pokémon Crystal Ultimate a broad completed overhaul. It is Major Agnostic's English GBC hack of Crystal, version 1.0.7.5. New maps and restored Kanto areas sit beside evening lighting, revised sprites, new music, and softer night themes. Reusable TMs, a Pocket PC, move tutors, and a Move Reminder improve convenience. The game adds side quests, special Trainer battles, super bosses, rematches, level caps, and cross-region Fly. Catching Pokémon gives experience, and the restored Celebi event is included.
What's in it
- Updates maps and adds shortcuts such as those in Goldenrod.
- Reworks battle and overworld sprites for notable characters, Surfing, party-menu Pokémon, and overworld Pokémon.
- Adds evening with a golden tint.
- Adds reusable TMs, Repel reuse prompts, Generation 1 move tutors, a Move Reminder, and a Pocket PC.
- Adds more accessible items, room milestone gifts, all decorations outside Mystery Gift, and fossil Pokémon in the Ruins of Alph.
- Adds a Kanto storyline based on existing lore.
- Adds more than 90 Trainers.
- Adds new music and softer night versions of outdoor themes.
- Lets you run by holding B.
- Adds cross-region Fly.
- Makes all 251 Pokémon and all items obtainable in normal play.
- Rebalances base stats, moves, and Pokémon types.
- Adds special Trainer battles and super bosses.
- Adds side quests.
- Restores Kanto maps and revises many others.
- Uses a level and Stat Exp curve matching steady progression.
- Adds level caps.
- Adds colored Trainer Card badges and a third Kanto page.
- Uses softer, darker sprites at night.
- Sets Shiny odds to 1/256, or 1/3 for the Odd Egg, with high-DV Shinies.
- Fixes bugs and restores content including the Celebi event.
- Improves AI.
- Improves rematches with automatic phone-number offers and better scaling.
- Gives each Poké Ball a unique palette and awards experience for catches.
- Adds an in-battle weather indicator.
- Adds an Elite Four rematch with new dialogue.
Screenshots


Not sure how to install it?
A step-by-step walkthrough for GBC ROM hacks: emulators, patching tools and our in-browser patcher.
If you like Pokemon Crystal Ultimate, try these
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Pokemon Crystal Awakening
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Pokemon Ambrosia
An open-world Crystal overhaul with wandering Pokémon, level caps, a war story, rematchable trainers, and a huge post-game.
Pokemon Sour Crystal v5.0
Revisit Johto and restored Kanto with modern battle systems, custom sprites, Safari biomes, following Pokémon and flexible evolutions.
Digimon Crystal
Digimon replaces all 251 Pokémon in this Crystal overhaul, adding Fairy type, key-item HMs, running shoes, and tougher scaling.
Pokemon Crystal Legacy
Take on scaled Johto Gyms, a separate Kanto League, richer encounters, and a rebalanced Crystal adventure with a demanding post-game.