You probably already know these, but the boob toggle doesn't do anything, the game's file still calls it "Vaporeon Belly Game", clicking the big belly fast enough squishes it to become a very long horizontal line, she still deflates a little when both plugged and has her mouth covered while patting her belly (or if gassy is enabled), and the shiny toggle only changes the expanded belly (but changes to the old shiny Vaporeon color.)
Cool update though, it seems like it's a full upgrade of the character rather than just swapping out the Vaporeon fins like I was expecting based on the post.
If you need sounds, there's a lot available on Freesound, plus https://twitter.com/Inflate123/status/1253347249934893062 and https://www.furaffinity.net/view/37559286/ for more specific gas/air sounds.