Does anyone know how to edit sprites on a rom?

[Baxlar]

Specifically a DS rom, I've been trying to figure out how all day, any help is greatly appreciated.

[Mupen64 Man]

Hey there, I found a neat thread that could help you get on your way: https://gbatemp.net/threads/gbatemp-rom-hacking-documentation-project-new-2016-edition-out.73394/