not very the only thing is you can load SFX
And that it loads up your sounds much faster, for instance, your victory themes will play immediatly when the result screen is loaded. Riivo is also more efficient, has no file limits, and allows for other codes to be loaded without having issues in Brawl.
in lawman's terms: RIIVO DA FUTURE!!!!!
in my terms: Use Riivo for all your modding needs
