Pokemon CosmicEmerald (GBA)

Download Patched Pokemon CosmicEmerald GBA ROM Hack

Pokemon CosmicEmerald Version GBA Cover

Download: Mediafire

Hack Name: Pokemon CosmicEmerald
Platform: GBA
Hack Original: Pokemon Emerald
Status: 16.08.2022, bug-fix
Language: English
Category: PokemonHackGBA
Playable On: Mobile, Pc, Emulator


This is largely a "quality of life improvement" type of ROM hack and does not alter the main storyline. It retains all the features the original Emerald has but adds several things to the mix to make it more fulfilling and fun to play. Remember those days when myths like going to the Moon after a certain number of rocket launches/weeks were a thing? Several things like that will be accounted for, but with some changes/twists to how they are done. There is a moderate increase in difficulty (not really big, just aimed more towards veteran players), but there are rewards to compensate.

List of Features

  • CosmicEmerald is backward-compatible with normal Emerald Version save files. All of your old progress will count in this game so you can pick up where you left off!
  • Emerald's PRNG ("pseudo-random number generator") glitch has been fixed by re-enabling its unused PRNG system, as well as adding another structure that gives it more randomness
  • Faster Emulation
  • All 386 Gen 1-3 Pokémon available
  • A New Evo Stone that evolves Trade-Evo Pokémon
  • More Roaming Legendaries, events, different sprites, etc.
  • Day & Night System (Early-Morning, Morning, Day, Afternoon, Twilight, Evening)
  • Graphics have been altered in many different areas/aspects
  • Upgraded B/W Repel System
  • TMs are reusable
  • The in-game Move Tutors are now usable daily
  • All Pokéballs (except Safari Balls) are reusable until the capture
  • Your Pokémon receive EXP when you capture another, like at the end of a normal battle
  • Pokémon’s Natures have color-coded stat boosts/drops
  • EVs cap at 252 instead of 255 (in order to not waste remainder points)
  • The somewhat steeper difficulty curve
  • Running While Indoors
  • Upgraded EXP system: All Pokémon directly participating in a battle will receive full EXP, not half unless you use EXP Share to avoid having to switch them out. This allows you to have more options for how to train
  • The Safari Zone's expansion area is now split between nocturnal and diurnal Johto Pokémon (North and South, respectively)


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Developer: SkyVortex