Goro was a guinea pig in Shade (シェード, Shēdo) for tests and was wiped of his memories. When he sees that his girlfriend Eri Hinata (Yumiko Shaku) is amongst the hostages Shade has taken, he regains his memories and turns on the Shade terrorists. Oda is forced to reveal himself as the Phylloxera Worm, and reveals that several other Shade members have been converted into Worms. Goro transforms into Kamen Rider G to take on the Worms, defeating them all save for Phylloxera who is much too strong for him.