|Name & Etymology
|Design & Analysis
|Fires red-hot beams from its eyes.
|Condenses the energy within its body, and breathes it out of its mouth in the form of a wave.
Nidhoggmon is a major antagonist.
It appears in "Countdown to Tokyo's Annihilation", after Orochimon's true head resurfaces and absorbs a massive amount of energy and evolves into this form. Nidhoggmon is able to hack Izumi Koshiro's tablet to communicate with the Chosen Children, claiming to be "a Ultimate Digimon that surpasses the Perfect Digimon".
The gigantic Digimon starts its attack against the already exhausted group using its Annihilention, being confronted by Yagami Taichi, Ishida Yamato and their Partners Digimon. He responds with a concentrated attack released from his mouth, which is intercepted by the Warp Evolution from Greymon and Garurumon to Omegamon, thanks to the channeled energies of Yagami Hikari and Takaishi Takeru in the Human World, after reacting the feathers that appeared before they.
After Omegamon blocks all of his attacks during the battle, and uses his Garuru Cannon to freeze him, Nidhoggmon is able to free himself thanks to his superheated body due to the large amount of accumulated energy, then using his Rudiment against Omegamon, which he manages to block the attack after being powered by the Digivices of the two boys, attacking and cutting Nidhoggmon in half with his Grey Sword, defeating him definitively.
Nidhoggmon from Digimon Adventure:
Nidhoggmon against Omegamon.
Nidhoggmon is one of the Ultimate Digimon available in the Gabumon Dim Card