Skeetendo

To clarify by not making this question sound like “how can I make a new base cry in PokéCrystal?”, in Prism every Pokémon from gen 3 and up had their own custom cries, similar in formatting like PokéYellow’s Pikachu cries. Is there any way to rewrite the code that allows for that to work or port it to PokéCrystal? Thanks!

Also I SWEAR I saw another hack last year that did it, but I can’t seem to find it anymore...