Double Spoiler official jewel case
Full: March 14, 2010 (Reitaisai 7)
Vertical Danmaku Photography Shooting Game
Single-player Story Mode
ダブルスポイラー ～ 東方文花帖 (Daburu Supoiraa ~ Touhou Bunkachou, "Double Spoiler ~ Oriental Cultural Album"), known as DS in English speaking community, is a danmaku vertical-scrolling photography game sequel to Touhou Bunkachou ~ Shoot the Bullet. Because it takes place after Touhou Hisoutensoku, it is labeled as TH12.5.
In Double Spoiler, you can play as Aya Shameimaru or, after you unlocked her, Hatate Himekaidou. Like Shoot the Bullet, the heroines must take pictures of various bosses and their bullet patterns while avoiding them as well. The player gains points for taking certain kinds of pictures, such as getting Aya or Hatate in the shot with the boss, taking pictures of bullets primarily of a single color, or taking pictures while grazing bullets. The player must take all these aspects into account in order to achieve good scores and enable a comment from both. Different from the previous title is that the camera can be turned so places could be easier to photograph.
Name and Concept
Double Spoiler could be seen as a sequel to Shoot the Bullet. In the announcing of the game ZUN said it is the second Shoot the Bullet.  It uses the same concept as you have to take pictures of previous bosses and after a specific amount of points is reached, Aya or Hatate gives a comment on the spell card or boss. But in Double Spoiler, 14 stages with a total of 108 spell cards. Also different is that there now are two characters to choose from. Though, the new character Hatate Himekaidou could only be accessed if you capture all the spell cards in the Spoiler stage.
On the jewel case, "Spoiler" is misspelled "Spoier".
Double Spoiler was the first game in Touhou Project to lists its replay in the user's profile directory, and also the first to change the Windows 7 users their theme to the Aero theme.
Aya Shameimaru, the tengu reporter, has a newspaper named "Bunbunmaru Newspaper". Another tengu, Hatate Himekaidou, also has a newspaper "Kakashi Spirit News". Hatate was wondering why Aya's newspaper was so popular, as she thinks it is a ridiculous paper. In order to find out Aya's secret she is going to observe her. When she finally got the secret she approaches Aya and tells her to stop making up things for her paper. Aya doesn't give in and Hatate is making it an competition.
The game soundtrack of Double Spoiler has six named tracks and one unnamed. Same as the other title screens, it is an arranged version of Theme of Eastern Country from Akyu's Untouched Score vol.5. Only the first four "Photo Themes" are original tracks. The fifth photo theme, The Youkai Mountain ~ Mysterious Mountain (妖怪の山 ～ Mysterious Mountain), is the arranged version of the same named track in Mountain of Faith. The unnamed track can't be heard in the music room and only be accessed when you unlock Hatate by clearing the Spoiler stage.
ZUN said that the fifth track, Bell of Avici ~ Infinite Nightmare (無間の鐘 ～ Infinite Nightmare), is the one the player will hear the most. He even describe it as some sort of hell. It should be the hardest part after all. As the comments say that the tracks change when the difficulty is set higher.
Bell of Avici ~ Infinite Nightmare was later featured in the 5.5th album of "ZUN's Music Collection", Unknown Flower, Mesmerizing Journey.
First time the fans heard of the game was when ZUN announced the game on his blog Invisible Games and Japanese on 3 March 2010, a few days before its full release.  At Reitaisai 7 the full version was released.
- ZUN (3 March, 2010). "東方Project 第12.5弾" (in Japanese). http://kourindou.exblog.jp/12243476/. Retrieved August 27, 2011. "今回はおまけ的な扱いだった東方文花帖の第二弾となります。"
- ZUN (3 March, 2010). "東方Project 第12.5弾" (in Japanese). http://kourindou.exblog.jp/12243476/. Retrieved August 27, 2011. "＊注、他の作品に比べ（オールクリアの）難易度は高いので、鍛えておいてくださいね。"
- ZUN (3 March, 2010). "東方Project 第12.5弾" (in Japanese). http://kourindou.exblog.jp/12243476/. Retrieved August 27, 2011.