Does anyone know how to get the fox mask so I can unlock grandpa gohan?
I think you have to beat Yamcha with Majin Buu, I'm not sure the Saga. Its the Saga with Majin Buu, though.
The other, Fox Mask, is located in both the Android and Buu saga's. In Android saga chapter 17, and Buu saga chapter 11. Go to the yellow dot at the Mountain Road, Yamcha will be there, beat him to get Fox Mask