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 official manga, albums, spin-offs, and fighting games.

ZUN is admittedly a big fan of the JoJo's Bizarre Adventure and has made multiple references to the series in each game. The most notable 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, and introduces the character Sakuya Izayoia, a maid who serves the vampire sisters Remilia and Flandre Scarlet. Sakuya's abilities and attacks were based on 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.

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," referencing 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.

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Perfect Cherry Blossom
In Marisa's scenario in Perfect Cherry Blossom, she assumes that Ran is a "long-distance type" of shikigami. This is a reference to a classification of Stands known as "Long Range Stands", which are able to travel long distances away from their users. This is further supported by the fact that the term is called "Long-Distance Operation Type" in Japanese.

In the seventh game Perfect Cherry Blossom, once Marisa defeats Ran (a ), she asks her if she is a Long-distance Type, because her master is far away and she is quite strong. This is a clearly reference to the Stand Types in JoJo's Bizarre Adventure.

Imperishable Night
Two of Kaguya Houraisan's Spellcards have references to JoJo's Bizarre Adventure, the first one being Divine Treasure "Salamander Shield", states that the creatures would at least need blood that doesn't boil, and brings up Esidisi as an example. And the other one being New Impossible Request "Red Stone of Aja" in Shoot the Bullet referencing the stone in Battle Tendency, the Red Stone of Aja.

In 100th Black Market, Eika Ebisu has a spell card called "Stone Sign Red Stone Stack of Aja", further referencing the Red Stone of Aja in Touhou.

Marisa uses Jotaro Kujo's Catchphrase "Yare yare daze" after defeating Wriggle in Imperishable Night.

Subterranean Animism
In the eleventh game Subterranean Animism, Yuugi, an oni, fights Marisa "without spilling a drop of sake" (stated by Patchouli). In Marisa and Patchouli's scenario in Subterranean Animism, Patchouli notices that Yuugi didn't spill a drop of her sake during their fight. This is a reference to when Zeppeli tests Jonathan's Ripple skills by having hold a glass of wine, instructing him not to spill a single drop.

In an interview, ZUN mentions that her act of not spilling a drop of sake is reminiscent of Jonathan from Jojo; although he further adds the two characters are unrelated.

In Symposium of Post-mysticism, an official Touhou Fanbook, Toyosatomimi no Miko says that Koishi Komeiji "stopped thinking", using the phrasing of the famous line After a while, he stopped thinking (そのうち、考えるのをやめた.) referencing Kars.

Undefined Fantastic Object
One of Ichirin's attacks in the fighting games has her doing Jotaro's famous Jaguar Varied Assault with Unzan. She's also often referred to as "Ichirin Kujo" among Japanese fans.

Ten Desires
One of Miko's lines in Ten Desires is "Your next line is...", Joseph Joestar's catchphrase.

Hidden Star in Four Seasons
In Marisa's scenario in the game Hidden Star in Four Seasons, she utters the line "I refuse!", which is a reference to Rohan Kishibe. ZUN has also mentioned that this particular line is his favorite from JoJo's Bizarre Adventure.

Fangames
The Touhou series is unique in the sense that ZUN places very few restrictions on the use of his content in unofficial works, as well as giving permission to indie developers to release their fangames on different platforms.

In Adventures of Scarlet Curiosity, when meeting with Remilia on the Extra Route, Flandre will say "You thought it was Patchouli, but it was me, Flandre!", which is a reference to Dio Brando.

In Koumajou Densetsu II, Sakuya, Youmu and Remilia share voice actresses with Jolyne Cujoh, Reimi Sugimoto and Yasuho Hirose in JoJo's Bizarre Adventure: All-Star Battle. -->