So I figured out that with the new File Patch Code, you can input THPS using gecko, does this also support Smashbros_Sound.brsar? I ask because not all the SFX hacks I have don't have a .bnk file for gecko...
If most of them are .sawnd files then just put them in SD>private>wii>app>RSBE>pf>sfx
then name the file the group id of your character.
If they're just wav files then convert them int .sawnd using Super Sawndz