Pokemon Core Crystal

Pokemon Core Crystal is a GBC ROM Hack by Sakaysen based on Pokemon Crystal in English. It was last updated on September 19, 2025, and is now available to download.

• ▸ Suicune’s base stats are slightly improved as a nod to the games namesake.
• ▸ Blue color palette priority to match the game theme (Male sprite is now also blue).
• ▸ Lugia and Ho-oh can be caught before fighting the Elite-4.
• ▸ Celebi Encounter is restored
• ▸ Ruins of Alph Fossil Pokemon added
• ▸ Legendary Birds have been added back
• ▸ Mewtwo and Mew encounters
• ▸ Pick your starting pokemon options by region
• ▸ View Shiny pokemon in the Pokedex
• ▸ TM Names now visible
• ▸ Gen 6 Exp. Share (Toggleable Key Item)
• ▸ Shiny Pokemon calculation updated after encounter with Suicune. From: 1/8192 -> To: 1/1024
• ▸ GHOST type is now SPECIAL
• ▸ DARK type is now PHYSICAL
• ▸ FAIRY type added to the game as SPECIAL.
• ▸ Trading is no longer required for evolution, new ways to evolve have been added.
• ▸ Evolution moves have been added
• ▸ Move menu for the party menu shows more information
• ▸ tat Screen page for DV’s
• ▸ Happiness increases quicker and is displayed on the pokemon stat page
• ▸ Base Stats reworked for certain pokemon
• ▸ Certain Pokemon Moves have had some rebalancing.
• ▸ Pokemon Route Encounters have been changed.
• ▸ Shiny ditto has been added as an option for the Odd Egg (1%).
• ▸ New Pokemon Additions:
• ▸ Pokemon Type Changes: Typhlosion is now Fire/Ground Meganium is now Grass/Fairy Feraligatr is now Water/Dark More type changes listed in the guide
• ▸ The following pokemon have been removed from the game to make room for some additions: Lickitung Shuckle Aipom (If any of these is your favorite pokemon, I do apologize but you will not find them in this ROM hack)
• ▸ Gym Leader Parties reworked. Feature more Johto mons.
• ▸ Gym Leader Rematches added
• ▸ Rival Party has been improved
• ▸ Elite 4 Rematch Teams
• ▸ Gym Badge Stat Boosts removed
• ▸ Gym Badge Type boosts only apply to STAB attacks
• ▸ Removed the -30% chance for enemy pokemon to land status moves
• ▸ Weather Icons in battle
• ▸ Time of Day Icons in battle
• ▸ Only Berry items can be stolen from the Players pokemon via the move thief
• ▸ Kurts pokeballs actually work as intended (Bugs fixed)
• ▸ HM Moves can be forgotten
• ▸ When a pokemon levels up, its stat increases are displayed
• ▸ The move menu in battle shows additional information about the move.
• ▸ Viridian Forest has been added back
• ▸ HM moves no longer need to be taught to be used in the Overworld
• ▸ Evening has been added as a time of day
• ▸ Faster Nurse Joy Healing
• ▸ Item bag can hold more items (50)
• ▸ Berry bag addition
• ▸ Blackthorn Move Deleter also has a Move Relearner
• ▸ Berry bushes provide 1-3 berries
• ▸ Berry Bushes have berry sprites to show when they can be picked.
• ▸ You can fish while surfing
• ▸ Items in the overworld have updated sprites
• ▸ Pokemon in the overworld look correct rather than generic sprites
• ▸ Berry shop in Goldenrod
• ▸ Auto reuse repel prompt.
• ▸ I did not add running shoes since the only option I could easily find moves the player at the same speed as the bike.