Kamen Rider Build: Special Event (仮面ライダービルド スペシャルイベント Kamen Raidā Birudo Supesharu Ibento) is stage show of Kamen Rider Build. The stage show was performed live on May 4-5, 2018 at the Grand Prince Hotel in New Takanawa, and was released on DVD on September 12, 2018.
