The Unnamed Planetoid is the location where the Legendary Soldiers of Vestroia fought against Zenoheld, but the warriors lost against him. The planetoid next appeared when Volt and Gus chose it as the battlefield for their encounter.
Later when Spectra rammed the Vexos Motherpalace to fight Zenoheld, they headed to the planetoid once he used the Assail Formation. Spectra and Gus remained on the planetoid and began to fight against the Alternative Weapon System. The Alternative blows the Planetoid nearly in half. Later, Helios MK2 and his Battle Gear, Twin Destructor destroyed it by using a Level 3 Battle Gear Ability through the Planetoid to counter the laser from the Alternative Weapon System.