Currently I'm trying to make the UI better/having a main menu and options menu, so I definitely want to split the SFX and music volume in that. New pokemon probably won't be added today, but I can definitely put Pyukumuku onto my list. As for Wishiwashi School Form, I definitely agree and have gotten that complaint from others as well, so it is definitely going to be made a bit bigger.
Thanks for playing and leaving this feedback, this is my first ever real game so it means a lot to have people care so much :)