★ 7.2 Film
Ultra Galaxy Legend Side Story: Ultraman Zero vs. Darklops Zero - Stage I: Cosmic Collision
2010
Same creator (Hideki Oka); both explore kaiju
★ 6.0 Film
Ultraman Zero Side Story: Killer the Beatstar - Stage II: Oath of the Meteor
2011
Same creator (Yūichi Abe); both explore kaiju
★ 5.7 Film
Ultraman Zero Side Story: Killer the Beatstar - Stage I: Universe of Steel
2011
Same creator (Yūichi Abe); both explore kaiju
★ 7.2 Film
Ultraman Geed the Movie: Connect! The Wishes!!
2018
Both explore kaiju; both action and science fiction
★ 6.7 Film
Ultra Galaxy Legend Side Story: Ultraman Zero vs. Darklops Zero - Stage II: Zero's Suicide Zone
2010
Same creator (Hideki Oka); both explore kaiju
★ 6.8 Film
Ultraman Tiga: The Final Odyssey
2000
Both explore kaiju; both action and science fiction