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