Atomic Puff-Puff

Atomic Puff-Puff is a Fiery Puff-Puff that has been eaten away at by spritnite, turning the inside of its body into what can only be described as a nuclear fusion reactor. A long time has passed since the spritnite took over its body, and it has reached a critical state, meaning that even the smallest shock can trigger a huge explosion. No one had previously witnessed one of these explosions and lived to tell the tale, and therefore the creature's very existence was previously uncertain. It belongs to the  Spritnite-Eaten Monsters  category.

Groundrush
Atomic Puff-Puff spirals into a party member, dealing damage.

Self-Destruct
Instead of just Detonating when its HP reaches 0, Atomic Puff-Puff will also detonate after a non-lethal attack, or at random, dealing damage to any party member close enough to it.

Chain Reaction
When one Atomic Puff-Puff Self-Destructs, the remaining Atomic Puff-Puff will detonate in a chain, dealing damage to anyone party member close enough to it. Atomic Puff-Puff won't use Chain Reaction if its HP has already reached 0 when the initial Atomic Puff-Puff uses Self-Destruct.