Touhou Project

Touhou Project (東方Project) is a series of Japanese video games created by, also known as "ZUN". The series has gained a cult following both in and outside Japan, spawning several manga, albums, spin-offs, and fighting games.

ZUN is admittedly a big fan of JoJo's Bizarre Adventure and has made several references to the series within each game. The most notable of which being the character Sakuya Izayoi, whose ability to stop time was inspired by DIO.

Embodiment of Scarlet Devil
Embodiment of Scarlet Devil is the sixth game in the Touhou Project series. It introduces the character Sakuya Izayoi, a human maid who serves the vampire sisters Remilia and Flandre Scarlet. Sakuya's abilities and attacks are a reference to DIO from Stardust Crusaders, with her combat style prominently involving stopping time and throwing knives at the opponent. Furthermore, one of her spell cards is named "Illusion World: The World," which is a reference to DIO's Stand, The World. She also has a spell card named "Jack the Ripper," which could be a reference to one of DIO's minions in Phantom Blood.

These influences can also be seen in other Touhou games, particularly in the fighting games and. In these games, Sakuya's attack animations are directly inspired by DIO's moves from Heritage for the Future. Additionally, she posseses the spell card "Sakuya's World," which is a reference to DIO's World. In the spin-off game, one of Sakuya's scenes is named "I Don't Know What Happened," a reference to the scene where DIO uses his Stand to stop Polnareff from ascending a set of stairs. In Double Dealing Character, Sakuya also possesses a spell card that erases time, eliminating the bullets around her, reminiscent of King Crimson's ability.

In Marisa's scenario during Embodiment of Scarlet Devil, she asks the final boss Remilia how many people's blood she's sucked up until now. In response, Remilia says "Do you remember how many slices of bread you've eaten in your lifetime?" This is a reference to the quote between Dio and Zeppeli in Phantom Blood. In The Grimoire of Marisa, Marisa comments on Sakuya's abilities, comparing them to super speed or teleportation. She then states, "Reimu's technique isn't something cheap like that. I'm sure you don't understand what I'm saying, but I don't really get it either." This is another reference to Polnareff's quote, and is also referenced again in the fighting game.

Perfect Cherry Blossom
Perfect Cherry Blossom is the seventh game in the Touhou Project series. In Marisa's scenario within the game, after she defeats the named Ran, she asks if she's a "long-distance type" because of how strong she is despite her master being far away. This is a reference to the Long-Distance Stand Type used in JoJo's Bizarre Adventure, in which Stands are able travel long distances from their users while still maintaining their power. In Japanese, she even uses the specific term "Long-Distance Operation Type" (遠隔操作型).

Marisa makes a similar reference during her scenario in the game, where she utters the line "I refuse!", which is a reference to Rohan Kishibe from Diamond is Unbreakable. ZUN has mentioned that this particular line is his favorite in the JoJo's Bizarre Adventure series. Marisa also uses Jotaro Kujo's Catchphrase "Gimme a break!" after defeating Wriggle in Imperishable Night.

Imperishable Night
Imperishable Night is the eighth game in the Touhou Project series. In one of Kaguya Houraisan's spell cards in Imperishable Night, titled "Divine Treasure: Salamander Shield", ZUN mentions in the spell card description that salamanders and phoenixes would need blood that doesn't boil to withstand the fire, specifically comparing them to Esidisi. In the spin-off Shoot the Bullet, Kaguya also has another spell card titled "New Impossible Request: Red Stone of Aja", which is a direct reference to the Red Stone of Aja in the same part. The Red Stone of Aja is also referenced in the spin-off 100th Black Market, in which Eika Ebisu has a spell card titled "Stone Sign: Red Stone Stack of Aja".

Subterranean Animism
Subterranean Animism is the eleventh game in the Touhou Project series. During Marisa and Patchouli's scenario in Subterranean Animism against Yuugi Hoshiguma, Patchouli mentions that Yuugi managed to fight against Marisa without spilling a drop of her sake. In an interview, ZUN mentions that this is reminiscent of the scene where Zeppeli tests Jonathan's Ripple skills by having hold a glass of wine, instructing him not to spill a single drop; although ZUN further adds the two characters are unrelated.

Fan-made Works
The Touhou Project series is unique in the sense that its creator, ZUN, places very few restrictions on the use of his content in, often giving permission to indie developers and artists to distribute and publish their fan-made works through official platforms.

In the game Adventures of Scarlet Curiosity, during an encounter with Remilia on the Extra Route, Flandre will say "You thought it would be Patchouli, but it was me, Flandre!", which is a reference to Dio Brando. In the game Koumajou Densetsu II, Sakuya, Yomu and Remilia share voice actresses with Jolyne Cujoh (Miyuki Sawashiro), Reimi Sugimoto (Ryo Hirohashi) and Yasuho Hirose (Eri Kitamura) in All-Star Battle respectively. Sawashiro also voices Marisa in the fan-anime Muso Kakyo. In the official mobile game Touhou Danmaku Kagura, Cirno is voiced by Fairouz Ai who also voices Jolyne Cujoh in the Stone Ocean anime.

Unlucky Morpheus
Unlucky Morpheous is a Japanese band primarily known for doing fan-made Touhou arrangements. The bands lead singer and vocalist, Fuki Commune (formerly a member of "LIGHT BRINGER"), has been a big fan of anime and manga since they were a child, most notably the JoJo's Bizarre Adventure series. In a 2014 Interview, Fuki spoke with fellow Japanese singer and voice actresss,, about her love for the series. Diamond is Unbreakable is her favorite part.

In 2015, Unlucky Morpheus released their fifth EP, "Vampir". The fourth track, "Phantom Blood", is a reference to the part of the same name. Not only is the track featured on an album with a vampire aesthetic, but when translated to english, one of the lyrics reads "I grabbed the mask; the time is to come", likely referring to Dio Brando rejecting his humanity upon using the Stone Mask.

Kisida Kyodan & The Akebosi Rockets
Kishida Kyoudan & The Akeboshi Rockets is a Japanese rock band that began in 2004 doing fan-made covers and original songs for the Touhou series before making their major debut performing the theme song of the anime. The band's lead singer and vocalist, Ichigo, is a longtime fan of JoJo's Bizarre Adventure and would also later go on to become the singer for STONE OCEAN, the first opening for the Stone Ocean anime.