Kamen Rider 555: Paradise Lost
The Longhorn Orphnoch was seated at a table with the Giraffe Orphnoch when several human resistance fighters fled outside from Smart Brain forces after failing to steal the Emperor's Belt. The Longhorn Orphnoch and his companion immediately assumed their Orphnoch forms and joined the clash, attacking the humans. However, Kamen Rider Kaixa soon arrived to save the resistance fighters and fight off the Orphnochs, killing the Longhorn Orphnoch with his Xeno Clash.
All Riders vs. Dai-Shocker
The Longhorn Orphnoch was a member of a Dai-Shocker squad of kaijin led by General Jark that pursued Natsumi Hikari and Diend. After Decade showed up and fought off the squad's combatmen alongside Diend, the Longhorn Orphnoch stood in front of General Jark along with Ganikomol and Leiurus Acutia to protect him from Diend's Dimension Shoot, but were unable to and were instead destroyed alongside him.