I have a (homebrewed) Wii and an original GBA with the GBA to gamecube/wii link cable. I remember reading something where someone said you could send GBA homebrew to the system that way but it never really went into much detail. If someone can link me to something or knows how to do this please do. I don't have any kind of GBA flashcard so this is the only way I can run GBA hombrew on an actual GBA.
Thanks!

 

Thanks! This is exactly what I was looking for, will try now.