Spade Ace Wakai Shishi is the theme of Gorou Sakurai (Spade Ace). While it is initially used as a background song in Ep. 11: 13 Jackpots!! Burn! Flames of Friendship, its BGM usage is more notable starting from Ep. 23: White Birdman! Big One, where it becomes the theme of the launching of J.A.K.Q.'s second finisher, Big Bomber. * Lyricist = Yatsude Saburou (pseudonym for Toei staff) * Composer / Arranger = Watanabe Michiaki * Singer = Sasaki Isao, The Chirps