Below you will find every animated sprite from Pokémon Crystal in GIF format with transparent backgrounds, which can be downloaded for personal usage. These official sprites belong to Nintendo/Game Freak and I do not own the rights to them, I merely mass converted them into GIFs and labeled them by both English species name and Pokédex number.
PLEASE DO NOT HOTLINK!!
Download any sprites you want to use on your personal sites and projects and upload them to your own server. CPG is hosted on Neocities which does not allow hotlinking.
The downloads listed here are all ZIP files.