Climax Jump (クライマックスジャンプ, Kuraimakkusu Janpu) is an opening theme (OP) from Kamen Rider Den-O. It was performed by AAA. * Lyricist = Fujibayashi Shoko * Composer = Shuuhei Naruse * Arranger = Naruse Shuuhei, (Nippon Columbia Version: T-Show), (Rider Chips Version: Cher Watanabe) * Singer = AAA DEN-O Form, (Nippon Columbia Version: Hiroaki Takeuchi, Sayuri Kusanagi), Rider Chips