I added one character using this guide: https://www.youtube.com/watch?v=hOeMMUft44o&t=458s , and all I get is a blank character selection screen, and if I try to use a mode like event, my game freezes, I'm using hackless,could that be a problem? Please help!

Does anyone know where I can find character .Rel files... Preferably for mario to go over rob? Thank you!