I've attached a save containing my collection of Pokemon Center New York Pokemon, among them Celebi and multiple egg events. The battery on my Crystal Version has lasted long enough for me to be able to do this. I had no issues with opening this file with Visual Boy Advance after downloading the save and the game itself. It should work fine. Feel free to distribute these files as you see fit, so long as the Pokemon aren't edited, any people interested in research may feel free to contact me