Zero sits on a cliff while he watches a strange tower firing lightning bolts, and then rises to face against what it seemed to be members Ultra Brothers, Ultraman, Robot Zoffy, Ultraman Jack and Ultraman Ace. After incapacitating the ZAP SPACY's Space Pendragon, Ultraseven joined the group as they face against Zero.
Unfortunately the movie Ultra Galaxy Legend Side Story: Ultraman Zero vs. Darklops Zero - Stage I: Cosmic Collision is not yet available on HBO Max.
| Directing | Hideki Oka | Director |
| Writing | Kenichi Araki | Screenplay |
| Production | Shin'ichi Ôoka | Production Director |
| Production | Masahiro Okuda | Production Manager |
| Sound | Voyager | Theme Song Performance |
| Writing | Hideki Tama | Lyricist |
| Sound | Takao Konishi | Music Arranger |
| Sound | Yasuhiro Ueda | Music |
| Production | Hiroyasu Shibuya | Producer |
| Visual Effects | Masayuki Gotou | Character Designer |
| Camera | Shinji Miyata | Camera Operator |
| Visual Effects | Tsuyoshi Kazuno | Visual Effects Supervisor |
| Production | Hidekazu Uehara | Production Supervisor |
