Background in 2016|alt=|thumb After the release of the previous
Touhou Project game,
Mystic Square in late 1998,
ZUN, creator and developer of the series, graduated from university.
Mystic Square was intended to be the final
Touhou Project installment with ZUN "sealing" his
doujin activities – he had originally planned to stop with
Lotus Land Story. He would go on to work at
Taito as a game developer, and also composed music for various games created by members of Amusement Makers, the publishers of the previous five
Touhou Project games, like the
Seihou Project. ZUN left Amusement Makers in 2001, but continued to work at Taito until 2007, meaning each
Touhou Project game until
Mountain of Faith was developed concurrently with ZUN's work at Taito, which include
Magic Pengel: The Quest for Color,
Bujingai,
Graffiti Kingdom and
Exit, as well as other games that were ultimately cancelled. ZUN would reenter
doujin activities by establishing his own
doujin circle, changing his developer team name from "ZUN Soft" to
Team Shanghai Alice, although initially the circle was not meant to develop games. ZUN applied to Comiket 61 under the name as a music circle, but was rejected. An announcement was then made on ZUN's blog promoting the game.
Embodiment of Scarlet Devil marked the first time ZUN programmed a Windows application from scratch. As ZUN was more familiar with
APIs and
DirectX and was relatively unfamiliar with the application level, he spent considerable time creating
libraries and tools for the game. Some libraries were borrowed from the
Seihou Project; Ponchi, a member of the
Seihou Project's development team, is thus given a credit as "Program Support". As a result, little time remained to improve the game's presentation, and ZUN resolved to focus on improving the next game. The
game engine developed for
Embodiment of Scarlet Devil would later be reused for the games
Perfect Cherry Blossom and
Imperishable Night. In 2013, ZUN stated fragments of code from the game were still being reused in
Double Dealing Character. This also allowed the game's plot to be contained within its own narrative –
Embodiment of Scarlet Devil does not mention or feature any PC-98 era characters bar Reimu and Marisa. Now regarding his past works as
juvenilia, the jump from PC-98 to Windows represented a "clean slate" for both ZUN and the series:
Embodiment of Scarlet Devil essentially serves as a soft reboot. ZUN has since remarked how the general theme and direction of the
Touhou Project only started to come together during the development of
Embodiment of Scarlet Devil. Some references are used from other material, mainly from the 1939
Agatha Christie mystery novel
And Then There Were None for symbolism and dialogue in the game. ZUN also had interest during development in making a bullet hell game in which the player could switch between two characters easily during gameplay, as he believed there were few games that incorporated such a system. He would ultimately decide against this, believing that having playable characters who had not been previously introduced would be unnatural, and so this system was reserved until
Imperishable Night, when he had determined enough characters had been introduced to the series. A
demo version containing the first three stages was also distributed online on June 10, 2002. ZUN has stated his intention to re-release
Embodiment of Scarlet Devil on
Steam, but due to compatibility issues when running the game in full screen on
Windows 10 or later, the
frame rate does not have a limit, causing the game to move at abnormally high speeds and rendering it unplayable. A similar bug was known to ZUN upon the game's release.
Character design and cultural references The game's characters were designed to fit the Western theme while maintaining specific gameplay roles. ZUN designed the Stage 1 boss, Rumia, to be the weakest boss in the game, intending for her "strong-sounding" ability to manipulate darkness to serve as an opening "punchline." While the mid-bosses of Stage 2 and Stage 4 were initially left unnamed in the game, fans nicknamed them Daiyousei (lit. "Great Fairy") and Koakuma (lit. "Little Devil") respectively, names which ZUN later adopted in fan responses and data books. Several characters draw inspiration from other media. The head maid Sakuya Izayoi was heavily inspired by the character Dio Brando from the manga ''
JoJo's Bizarre Adventure'', specifically his time-stopping abilities and knife-throwing attacks. Flandre Scarlet's dialogue and her theme song, "U.N. Owen Was Her?", reference the 1939
Agatha Christie mystery novel
And Then There Were None.
Music The game's soundtrack was originally composed for the
Roland SC-88 Pro sound module; ZUN decided to
arrange and re-record the soundtrack in
WAV format using a Roland Edirol SD-90 he had recently purchased, just before the game was released. As a result, two versions of the soundtrack exist; however the original
MIDI files will only play correctly on an SC-88 Pro, meaning the WAV version of the soundtrack is by far the most recognised. and that Remilia Scarlet's theme "Septette for the Dead Princess" and Flandre Scarlet's theme "U.N. Owen Was Her?" were the songs he most thought of as representative of the game. == Reception and legacy ==