If you are looking for this Ultimate's page, see Ultimate-Siegwurm-Nova.
|Voice (Japanese)||Taiten Kusunoki|
Ultimate-Siegwurm-Nova (ムアルティメット・ジークヴルム・ノヴァ) is a character in the anime and manga series Saikyo Ginga Ultimate Zero Battle Spirits.
He is a large red and golden dragon which stands on two legs and carries a sword, with green eyes.
Ultimate-Siegwurm-Nova is the first of the Tri-Dragon Deities to appear. Rei, Kiriga and Eris met him, and he warned them about the invaders from another dimension, who fought against the ultimates in the past. He explained that the Tri-Dragon Deities are the guardians of the Ultimate Battle Spirits, which the invaders, the Reverse 12 Zodiac Braves, are after. Ultimate-Siegwurm-Nova goes to Rei, and causes Mugen to evolve to Mugendragon-Nova.
- He shares a seiyuu with Number Nine in Battle Spirits Shounen Toppa Bashin, Heliostom in Battle Spirits Shounen Gekiha Dan and Mahiru Hinobori in Battle Spirits Heroes.