Turtonator

“The shell on its back is chemically unstable and explodes violently if struck. The hole in its stomach is its weak point.”

— Pokémon Sun

“It gushes fire and poisonous gases from its nostrils. Its dung is an explosive substance and can be put to various uses.”

— Pokémon Moon

“It lives in volcanoes and eats sulfur and other minerals. Materials from the food it eats form the basis of its explosive shell.”

— Pokémon Ultra Sun