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.
| Production | Shin'ichi Ôoka | Production Director |
| Sound | Yasuhiro Ueda | Music |
| Camera | Shinji Miyata | Camera Operator |
| Production | Masahiro Okuda | Production Manager |
| Writing | Hideki Tama | Lyricist |
| Sound | Takao Konishi | Music Arranger |
| Sound | Voyager | Theme Song Performance |
| Visual Effects | Tsuyoshi Kazuno | Visual Effects Supervisor |
| Directing | Hideki Oka | Director |
| Writing | Kenichi Araki | Screenplay |
| Visual Effects | Masayuki Gotou | Character Designer |
| Production | Hidekazu Uehara | Production Supervisor |
| Production | Hiroyasu Shibuya | Producer |
