Calli's October 13th, 2021 stream featured the mod's 4.0 in addition to a couple other hololive fangames. Notably, this comes after both Gura and Kanata's attempts to play the mod's 3.0 update, which fizzled out due to "technical difficulties" speculated to at least partially be an opaque excuse from management to avoid showing graduated talents on-screen; likely as a result of this, Calli's playthrough uses The Adventures of Detective Fubuki (introduced in 4.0) and avoids all of Week 4's songs. In spite of this, she gave the mod the same amount of praise as the other games featured if not more, and encouraged her viewers to download it to get the full experience.
Aruran was the first to play 5.0.0 following its release and similarly gave the mod his full praises, drawing attention to the Cameo Cluster in Week 5 (which includes himself.)
Amelia being a pro Fortnite player is likely inspired by Fera Animations' depiction of her and Gura (otherwise a case of Cowboy BeBop at His Computer due to getting their vocals mixed up), which inexplicably consists largely of the two breaking into Fortnite dances.
Aloe's vocals in 6.0 onwards were synthesized by Blantados, long before he joined the game's development as a tester.
Bury Your Art: Most content for the game that was removed in 6.0.0 (mostly storywriting) was scrubbed from their original sources on the internet, as was the evidence that the person who created it did so at all.
"Killer Scream" has a snippet of Madness near the end. According to a comment from one of the mods' contributors in the official upload of the song, this is referencing the fact that Madness was the first song Rushia's sprites were tested with.
The 6.0 loading screen for "Haachama" contains a replacement for the family portrait of the no-longer-canon Kurayamis, replacing the Dearests and Towa with the JP branch's 1st generation. Matsuri is seen wearing a red shirt, which with her brown hair causes her to resemble Girlfriend/Hana who was in the previous version of the portrait.
"Quadruple Baka" originated as a test of Fubuki's and Aloe's unique voices implemented in 6.0.0. It was extended into the full song, with Nene and Mio on backing vocals.
Disowned Adaptation: The dev team actively refuses to endorse any cover video related to the termination of the real Uruha Rushia (or the precursor incident that preceded it), both for consistency and sensibility.
Dummied Out: The following assets have gone completely unused as of 6.0.0:
Animation assets for Aloe that mirror Boyfriend's similarly unused animations in the vanilla game, such as the mic tossing and dodging animations. Boyfriend's default sprites also have a variant of the original, where he detaches his halo and uses it as a boomerang or Killer Yo-Yo.
Miss animations for Botan prior to her redesign, just like Pico having his own. The animations have her go similarly Blue with Shock while the barrel of her gun droops. They have since been rendered obsolete due to Botan's sprites being updated, despite her being Promoted to Playable since.
Icons for Tsukumo Sana in the game's default artstyle. While "Astrogirl" is a song, it does not use a health bar due to it being one of the game's FMV secrets.
Fanwork Ban: The developers aren't a fan of sprite and audio edits stereotypically associated with the FNF community and have intentionally withheld public access to the game's assets to prevent them from spreading. That being said, they have no problem with derivative content that either manually reassembles the the assets or directly pulls from the repository with developer permission (as this requires relatively more effort than basic edits), as shown by MAKYUNI's Approval of God comments on several covers where this is the case.
He Also Did: The main 6.0 trailer publicly reveals several community mainstays have participated in the update's development, including:
Before HoloFunk, GGalactigal's most famous work was a manual recreation of Halland/Dalarna as it appeared in Super Smash Bros. Ultimate, notable for having done so before Steve's DLC actually launched.
Missing Trailer Scene: Both trailers for 6.0.0 show a song called "On the Rocks" as the equivalent to "Roses," featuring an angry Roberu. Neither appear in the final release, the use of this footage hiding the fact that the actual "Roses" replacement is "Sinner" with Okayu.
Parody Assistance: VargyBoy's "But Every Turn a Different Character is Used" cover of "Sinner" has most of its HoloFunk assets directly provided by Blantados (including the song's FLP), rather than manually recompiling them.
Long-time creator and fan Blantados was hired as a beta tester for 6.0, and beforehand was given exclusive access to certain assets before they were shipped with 5.0.
Artist Zarky had made her presence known through fanart of the mod and other FNF-styled drawings of the talents before being hired as an artist for 6.0.
Referenced by...: Idol Showdown uses the instrumental of "Paintbucket" as background music, due to GGalactigal also having a spot on Besto Game Team.
In general, the pre-6.0.0 story is one giant case of this trope due to its vastly-different writing direction. While we are not at liberty to discuss most scraps not already posted here or why the story was changed due to issues with the site's verifiability policies, many of these can be found elsewhere on the internet.
The Adventures of Detective Fubuki was originally Kenji's route, devised as a Streamer-Friendly Mode for the real talents as it became clear the "technical difficulties" trying to set up the mod were almost certainly code for trying to avoid Aloe's presencenote As the use of the phrase was still the truth in that 3.0 and below, as direct asset replacements, was prone to error with inexperienced users, this was also the impetus to move the mod to a standalone .exe under KadeEngine.. The decision to shift focus to Fubuki and Mio came after 4.0's release so that the route could also double as a disconnect from the mod's more unique lore bits, with Kenji being relegated to currently-undisclosed endgame plans as his own character and an opponent. Following the dissolution of those plans, Fubuki's route has since become more of a standard alternate storyline. Boyfriend, on the other hand, has mostly been Demoted to Extra, but got thrown a bone by "Test" being changed to be between him and Aloe.
Prior to Fubuki being chosen as the alternate route's protagonist, Himemori Luna was almost the final choice for Kenji's replacement. It's unknown who she would've been paired with.
The change from Boyfriend's vocals to Aloe's in the soundtrack was supposed to be acknowledged by a gag referencing a scene from The Amazing World of Gumball where Gumball shifts voice actors after coughing, but the writing team forgot to write up a scene for it before the soundtrack was finished.
Extracting the game's assets reveals that Boyfriend and Girlfriend's alternate sprites are treated as the defaults in terms of file organization and vice versa, suggesting this was also supposed to be the case in the game's character select for freeplay.
MAKYUNI intended to give "Red and Black EX" a revision before 6.0 launched, but this was rejected by the developer team.
Aloe's facial expressions in her guitar animations for "D.O.O.G" were slightly different at one point. These versions can still be found in the game's files.
The "Like an Old Married Couple" comparisons of Fubuki and Mio's dialogue have been confirmed to be intentional by GGalactigal, in the context of a question of whether or not their route has the same Homoerotic Subtext as the game's portrayal of Aloe and Nene.
While 5.0.0 made the in-game undertones more explicit, Aloe and Nene's feelings for each other have been mostly demoted to this due to the rewritten dialogue being unable to squeeze in any relevant moments, the only remnant being Nene's unusual enthusiasm in getting Aloe changed into her Week 5 outfit due to those scenes being unchanged.
This is the first Friday Night Funkin' mod to run on Unity, starting in 6.0.0. While other mods have experimented with non-HaxeFlixel engines (Friday Night Funkin' Online VS. in particular using Clickteam Fusion), HoloFunk marks the first use of a more high-profile engine of the sort. Consequently, it is also the first FNF mod that can be considered to have been fully remade as a standalone game for another IP, given that the rewritten story relegates all non-Hololive material to cameos and Guest Fighters.
Across all known mods, Tsukumo Sana's appearances in HoloFunk originally made her the largest modded character in-universe at the time of her implementation, as without her limiter she is slightly larger than the Sun (who is an opponent in Pluto's Reprisal.) However, the latter mod would later take back first place by implementing a caricature of the black hole ABY, which is roughly five times larger than either character.
Boyfriend and Girlfriend are still referred to as Kenji and Kasumi (Hana's fake identity) in the game's files, even though those iterations of them are long-gone production-wise.
was the first to play 5.0.0 following its release and similarly gave the mod his full praises, drawing attention to the Cameo Cluster in Week 5 (which includes himself.)