Halofan, I used gecko on a sd card. it took a bit to get it to work, yes, but what i did was backup my sd card and empty it, put the files on, and then i turned the codes txt file into a .gct instead of using the one provided. after i got it to work, i got the stage expansion code to work with it, to make an expanded brawl!
May I have your SD card files please?
Because I cannot get it to work properly.
Also, I need to find a way to use it on Riivolution because I use SFX for Shadow, Knuckles, Tails, Goku, Vegeta and Crash Bandicoot.