Pokemon Crystal: Emu Edition

Pokemon Crystal: Emu Edition is a specially adapted version of Pokemon Crystal for the Game Boy Color, optimized for running in emulators.

The original cartridge used a built-in real-time clock, which often worked incorrectly in emulators and broke events tied to the time of day and the day of the week. This version fixes that, so you can enjoy the full game.

It is the best way to play Pokemon Crystal in an emulator.