It doesn't work. None of them work. I think it may have something to do with the sound fx I'm currently using. I'm using the LttP sounds. Is this the problem, or is it a bug? Regardless, you should add Boss Roar SFX to the Lttp Sounds.
Boss Roar SFX Doesn't seem to work..
DOS or Windows? Beta number?
The only boss roar I know that is not working is Patra/Digdogger/Manhandla's. I am not sure if it works for Gohmas or Dodongos, but it works with Ganon, Gleeoks and the Aquamentus. Oh yes, the version I am using is beta 180 for Windows.
I'm using 180, Dos, LttP sound effects. I'm pretty sure it has something to do with sound fx..