This is the list of characters in the 1987 Kamen Rider Series, and its 1988 sequel . Main characters Kotaro Minami is a 19-year-old man who became a mutant cyborg after the Gorgom captured him and his stepbrother Nobuhiko. Both are kidnapped for the sake of having them compete for the right of succeeding the Creation King and command Gorgom to rule the world, but just as his memories were about to be erased, Kotaro manages to escape. Since then, using the power of the Vital Charger belt and the King Stone of the Sun, he transforms into Kamen Rider Black to stop Gorgom and attempt to rescue Nobuhiko from them. He is referred by Gorgom as "Black Sun". As Kamen Rider Black, Kotaro fights barehanded using Rider Punches and Kicks to finish his enemies, although he once wields Shadow Moon's weapon, the Satan Saber, for his final battle against the Creation King. He also uses two motorcycles during the series: : A living motorcycle created by Gorgom, made specifically for the next Creation King. Used by Black during the series, it is temporarily hijacked by Shadow Moon once he is chosen by the Creation King as his true successor, but is destroyed by him once it manages to break free of his control and rejoin Black's side. It is later revived as Acrobatter when Kotaro evolves into Black RX. : Black's secondary motorcycle originally created by Yoichi Daimon for Gorgom before he defects from the organization. Yoichi's son Akira Daimon lends it to Kotaro until the end of his fight against Gorgom. During the events of Black RX, Kotaro lives with the Sahara Family and is captured by the Crisis Empire who ask him to join their side. When Kotaro refuses, they shatter his King Stone into two pieces, thus rendering him unable to transform into Kamen Rider Black. They throw him into outer space, where the sun's radiation mutated his King Stone, allowing him to evolve into Kamen Rider Black RX to fight the Crisis Empire and the Strange Demon Soldiers. As Kamen Rider Black RX, Kotaro is armed with the rapier, which allows him to perform the finisher. During the series, he gains two additional forms: : Black RX's bulkier form that is also known as the , with increased strength and resistance at the cost of reduced mobility. In this form, he is armed with the