Pokémon Crystal

About

Your own Crystal cartridge, either revision, on EmulatorJS's Gambatte core. The pret disassembly rebuilds both byte for byte; battery saves stay in your browser.

Pokemon Crystal is an enhanced version of Pokemon Gold and Silver and a role-playing game played from a top-down perspective. As in the earlier versions, the player explores the Johto region, catches and trains Pokemon, and battles other Trainers in turn-based combat while earning Gym Badges and filling out the Pokedex. Crystal keeps the same core adventure while adding refinements, including the option to play as a female character and animated Pokemon sprites. It retains series staples such as a real-time clock, Pokemon breeding, and trading and battling with other games via a link connection.

Description from IGDB.

How it runs

Project

pokecrystalDecompilation. The original binary turned back into source code, function by function.By pret

Port

andrewnakas.github.ioBy Andrew Nakas · WebAssembly, on the Gambatte emulatorOnline since Oct 8, 2026Source: andrewnakas/pokecrystal-web

Player

mGBA 2.5.1By Jeffrey Pfau (endrift) and contributors, built for the web by Nicholas VanCise (thenick775) · MPL-2.0Play opens it on this site. The port above is under Other ways to play.

Controls

Arrows move. X is A, Z is B, Enter is Start, Backspace is Select. Hold F to fast forward, R to rewind. On a touch screen, the buttons show on the screen.

Plays with

Keyboard and touch. Saves in your browser, with the moment you left.

You need

Your ROM: Pokémon Crystal (USA, Europe), 1.0 or 1.1, .gbc, 2 MiB. You pick the file in the player, which keeps it in your browser.

Original

Game Freak, 2000, Game Boy Color