question

would it be possiable to make addon content for wii or vc and gc games? i was thinking about doing but i am not sure how it would work

FYI i am a newby at this and if i start it i would like major help so i could get better a this and release more apps

I don't believe so....

yeah i though so because you would need the game data hee i was think out of the blue it be awsome but very complicate

Yeah not possible. You'd have to reprogram the game to make use of the extra content, which would require the source code, or a lot of patience and skill with ASM. Although you could probably replace some parts (textures, models etc.), but doing so would require dumping and extracting a WAD, then editing and repacking and reinstalling, most of which is not supported here.

Couldn't some smaller mods to games be done through gecko os?

Quote
aidan
Couldn't some smaller mods to games be done through gecko os?

Mods yes; Add-ons (which this topic is for) no.