Love the mod! The game crashed when I tried to spawn an Infant Island Native(I going to try installing optifine), but other than that, it's really cool. It might seem a bit of a job(especially considering your other mod, which I have yet to try out), but do you think you could make an animation for when the Oxygen Destroyer is detonated underwater? When I do it, it just clicks, then everything just dies.
Nice! I'm guessing that's G14. I hope that we'll eventually have G64, that's my all time favorite Godzilla. As for update 2.0 I can't wait, I've been waiting for all the kaiju to be update for a while now. Hopefully some nice animations are being added to them as I always found the way they walked weird.