Magmuta

Magmutas are rare relatives of the Mamuta that represent the creature's polar opposite. It looks like a Mamuta made out of burning shadows, with two glowing yellow eyes with no pupils. If it spots any Pikmin nearby, it will walk up and slam down with its claws, smashing the Pikmin to death. It can only be attacked by Red Pikmin due to the fire that engulfs the whole creature. Its smoky appearance helps strengthen the argument that there is some kind of relation between Mamutas and Proggs.

In Pikoblitz 2
In Pikoblitz 2, the Magmuta looks just like a Mamuta. When it is approached, it will ignite itself on fire and plant all Red Pikmin into the ground, leaving all other types of Pikmin in flames. Once defeated, the fire will have been put out and will practically be only a dead Mamuta.