Is this tutorial outdated? I am very confused. Mostly this part:
Click the down arrow by the word Main and choose SFX. Then look through every animation and find look for sounds that are being used for that character and match them with the character in the brsar that you replaced( for example if you are doing Shadow over Sonic you would go to the Sonic SFX in the brsar in Brawlbox and look at his wave ids and match them up with the TXT files here: