Several Space Beasts were meant to appear in the Ultraman Nexus series. These beasts were going to appear in the show's second half, but it was canceled due to the show's poor ratings. None of those monster's name are known, but the evil Ultraman is shown and named Dark Lucifer.
This unused monster's main trademark is that he possesses two heads, one is located in his tail. The secondary head greatly resembles the monster Antlar.
This monster was meant to be a plant beast.
This monster was designed from a roach.
This dinosaur-like monster was made of rock. It resembles the monster Gromite.
This monster, judging by his appearance, is made from sea weed. It looks very similar to Greenmons.
This monster is based on a termite. It looks slighty similar to the monster, Banpira.
Dark Lucifer, the evil Ultra that was going to be the final boss of the Ultraman Nexus series.