: Internal data for Pokémon that were designed but never made it into the final versions of Red, Blue, or Yellow.
: The file is widely archived on sites dedicated to retro gaming and digital preservation, such as Retro Reversing . Unlocking the Archive : Osrc.zip
Use built-in tools to peek inside without decompressing: : Internal data for Pokémon that were designed
find . -type f | sed 's/.*\.//' | sort | uniq -c | sort -nr Osrc.zip