Blood+: Sōyoku no Battle Rondo (BLOOD+ 〜双翼のバトル輪舞曲(ロンド)〜), from Sony Entertainment, is an adventure game released on July 27, 2006. Set during the year between episodes 32 and 33, after Riku's death, the game alternates between an "Active Demo" section where the player can make decisions that change the story line, and full action sequences where the player, as Saya, fights with her sword to collect chiropteran crystals.