Ultraman vs. Kamen Rider (ウルトラマンVS仮面ライダー, Urutoraman tai Kamen Raidā) is a crossover superhero television special that aired on July 21, 1993 which was originally made to commemorate the 25th anniversary of the Ultra Series and the 20th anniversary of the Kamen Rider Series, featuring clips from the various series from over the years, interviews with two of the stars, and finally a team-up between Tsuburaya Productions' Ultraman and Toei Company's Kamen Rider. It was also released on VHS and Laserdisc in 1993. In 2011, Ultraman vs. Kamen Rider was re-released on Blu-ray and DVD for the 45th anniversary of the Ultra Series and the 40th anniversary of the Kamen Rider Series.