|This article is about a/an Special DVD in Engine Sentai Go-Onger.|
Engine Sentai Go-Onger: Seminar dayo! Zenin GO-ON!! (セミナールだよ！全員GO-ON!! Semināru da yo! Zen'in Gōon!!?) is a special DVD in which Bomper lets each of the Go-Ongers do their own special seminar on ecology and also tie into the three Gaiark Pollution Ministers. Sōsuke and Gunpei start by helping Renn show how water and oil can't be mixed as Speedor covers Kegalesia and her Water Savage Machine Beasts. Then Hant shows how clean air is essential for people in an exercise experiment that nearly suffocates Gunpei from breathing in too much polluted air and being saved by inhaling helium by mistake as Speedor explains about Kitaneidas and his Savage Air Machine Beasts along with the Go-On Wings. After Gunpei's voice returns to normal, Saki begins her lesson though unaware she was supposed to teach a lesson though she grew strawberries from polluted soil and made a cake from strawberries that she grew in clean soil. As Sōsuke and Gunpei get the tea for her, Speedor talks about Yogostien and his Savage Machine Beasts, as well Hiramechimedes and all the events leading to Yogostein's death. The last seminar is cut short when Hiramechimedes' cross-dressing older brother Kokorootomedes goes after Sōsuke out of revenge, but is destroyed by Go-On Red's Kankan Kong Express Speedor Version after a tough fight. Just as Gunpei decides to give a seminar on how to be cool like himself, Bomper says that they are out of time and the seminars are over.