GSF's of Gamecube-Gameboy Advance Link Cable Roms by jurassicPieter at 9:38 AM EDT on July 29, 2009
I extracted the GBA MB-Roms from Wario World, Sonic Adventure, Phantasy Star Online, Pokemon Colosseum and Animal Crossing.
With a MB2GBA file i can change it in a working gba rom as long it's not waiting for a connection with the gamecube.
I see tiny chao garden is already done as gsf, but i'm interested to see if other GSF's can be made, in particular the Animal Crossing NES Advance Play, the PSO GBA Mini-games and Animal Island.
Sadly Animal Island doesn't work without Gamecube connection.
The advance play versions of the NES games play perfectly, and with rom2gsf i even get to hear the title music playing. These are the easiest to rip i guess, since you can convert a nsf to a nes rom and inject the rom. I know a little ASM, not particular the GBA one though.