Kamen Rider 555: Paradise Lost
As Kyoji Murakami was attempting to convince Yuji Kiba and the renegade Orphnochs to join the Orphnochs' cause, the Wild Boar Orphnoch walked in on their conversation accompanied by the Slug Orphnoch and the Pelican Orphnoch. Wild Boar and companions asked Murakami for permission to kill Kiba, saying he was a "traitor" to the Orphnochs for associating with humans. After Kiba contested their statements, the three assumed their Orphnoch forms to deal with him. Murakami then had Leo transform into Kamen Rider Psyga and told him to go kill them as a way of demonstrating his powers. The Wild Boar Orphnoch was destroyed alongside the Pelicon Orphnoch by Psyga with his Phone Blaster Burst mode.
All Riders vs. Dai-Shocker
The Wild Boar Orphnoch was among many other revived monsters who were part of the Dai-Shocker army in the World of Decade that fought a gathering of 25 Kamen Riders.