YMMV / Hatsune Miku: Project DIVA

  • Anti-Climax Boss:
    • In mirai 2, the final song prior to the obligatory Post Final Boss song that plays the credits is "glow", which is actually decently difficult on Hard. In DX, "glow" was moved back by one and replaced with "Nice to Meet You, Mr. Earthling!", the game's only new song and the theme song, which is far easier than "glow" and is rather lacking in difficulty.
    • In terms of presentation, the "Final Song" of X is this as the player has just replayed songs multiple times to get a 2nd Crystal from each Cloud while Miku believes it to be the complete climax of the whole game. The "Final Song" itself is a medley of difficult songs that fall under That One Level below, but the presentation itself is just Miku on a stage and doesn't even come close to being as visually impressive as the Back from the Brink moment that served to return the Vocaloids' ability to sing and open the game up after the first Cloud or even many of the other Cloud Event medley tracks in general.
      • Admittedly, the harder challenges in general, since you need to play the songs so often, on various difficulties, ALL the songs become boring and tedious, to the point that you just no longer feel the need to play them any more!
  • Author's Saving Throw:
    • F 2nd introduced Scratch Links, which easily drove themselves into Scrappy Mechanic territory for often being inaccurate to the song's timing and being unwieldy to manage. X fixed this by removing both Wide Scratch Notes and Scratch Links, returning to the F formula.
    • halyosy had removed Sakura No Ame from the games, due to licensing issues, until it abruptly returned with a new music video for F 2nd, that rerelease coming to Future Tone in the arcades and on the PS4.
      • This is in contrast to Jin, who forbade use of english karaoke lyrics on F 2nd for Kagero Daze, and has globally forbidden it from being licensed in Future Tone at all.
    • Depending on your stance on X, Future Tone can be viewed as redemption for what X failed to deliver, such as story PVs, challenging content, and a stuffed setlist.
  • Awesome Music:
    • Being a rhythm game drenched in J-Pop and Ear Worm, this is inevitable.
    • For a DLC minigame, "Hello Planet" had some pretty cool music, including this badass tune.
  • Best Level Ever:
    • F:
      • "Secret Police" just rocks. Even though it's fairly static compared to the rest of the game's setlist, no one can deny that the song is super addictive.
      • "World's End Dance Hall", actual meaning of the song aside, is a very fun track with a very fun PV.
      • "Senbonzakura", which is not just one of the most well-known Miku songs, but SEGA did the song justice with its music video.
    • F 2nd:
      • "DECORATOR", despite being relatively concert-style, takes what it does best and runs with it. The song itself is super catchy, too.
      • "Kagerou Daze" is really quirky in a fun kind of way. Also helps that it's an ultra-popular song from the Kagerou Project series.
      • "Two-Sided Lovers" gets an upgrade in this game, returning with a vengeance from the depths of extend's setlist, and with a great Chance Time event as well!
      • "Wintry Winds" also returns from extend.
    • X
      • "Urotander, Underhanded Rangers" is probably the PV with the most effort put into it given the new concert-style presentation, and it definitely shows. The chart is also liked for being kinda mean.
      • All of this game's Original Generation songs, "Name of the Sin", "Satisfaction", and "Amazing Dolce", quickly became fan favorites the moment the full songs were uploaded to the internet.
    • Future Tone
      • Except with X, almost all of the songs above are in the game. Sturgeon's Law has a hard time with this game.
  • Breather Level:
    • I'll Miku Miku You (Foreals) is the penultimate song of 2nd, and it's far easier than what came before, and what comes after.
    • Continuing Dream in F, very merciful for a (non-Extra) final song, especially with the two hardest songs in the game coming before it.
    • F 2nd has the un-intensive The World is Mine and DECORATOR sandwiched between two particularly brutal duos (see That One Level).
    • As far as high-level songs go, "Kimi no Taion" in Mirai is actually quite easy for being rated "9". Granted, the game is pretty easy anyways, but "Kimi no Taion" is rather simplistic.
    • Future Tone has no need to play any song at lower than HARD, and also has all the songs unlocked, meaning you can go at your own rate for everything.
  • Broken Base:
    • For international audiences, the Super-Deformed style of Project mirai. Bottom line is that chibi isn't as widely accepted in other parts of the world as in Japan. Also, the fact that mirai is overall easier than DIVA is a dealbreaker for some people.
    • For many fans, Project Diva X, due to Forced Level-Grinding to the point of self-parody, very plain gameplay, poor editing down of songs, compiling half the song library in fixed medleys, and a general poor treatment of everyone except Miku, with the Derivatives being treated like they don't exist. In contrast, Future Tone on the PS4 is a MUCH better anniversary title, even with the stripped down presentation.
  • Contested Sequel: Due to a series of happenstance instances, F 2nd ended up being this way. After its predecessor F had been the first game since the original to have an entirely unique (i.e. with no songs reused from older games) setlist, F 2nd went back to series form and half of its songs were updated versions of songs from the PSP games. Series veterans either didn't mind (since this was par for the usual course for games other than F) or considered this lazy; making this even more divisive was that these were songs from games that had never made it outside Japan, so people who had played only the localized versions generally didn't mind at all and were even happy that they got to play songs they wouldn't have been able to otherwise, many of which were iconic fan favorites.
    • F 2nd also went under quite a bit of fire for having a slightly more difficult Normal mode.
    • X had a lot of fun with this trope.
      • X being explicitly concert-esque PVs for the sake of being able to change the stage. Detractors claim that the lack of the more elaborate cinematic PVs isn't as entertaining nor as memorable as past games and is just an excuse for SEGA to be lazy, while defenders claim that the concert PVs are a way for SEGA to experiment with new gameplay styles that had yet to be seen in Project DIVA. It doesn't help that nearly all of the non-medley tracks are new additions that are mostly very well-liked songs that many would have preferred to have gotten cinematic PVs.
      • X is also probably the most Miku-oriented DIVA game to date; out of the 30 songs and Medleys that launched with the game, only four of them don't have Miku whatsoever. Rin, Len, and Luka get solos, MEIKO gets a trio with Rin and Len, and KAITO especially gets the short end of the stick; he has one song, and it has Miku in it! Naturally, fans of other Vocaloids were extremely displeased.
      • The lack of an actual Edit Mode riled up the Edit Mode fans, since X got the concert editor in its place, which despite the name bears very little resemblance to Edit Mode, functioning more like AR concert mode from F and F 2nd.
      • X is also very heavily influenced by Magical Mirai; many of the songs that aren't Original Generation or Medleys use dances borrowed from the concert. Fans have taken this as SEGA being lazy and not bothering to create new dances for their game.
      • The medleys themselves are also a point of contention, as they tend to be Marathon Levels and include songs that fans would've liked to see as full levels on their own. Full versions of songs that debuted in medleys is a popular DLC request. The Ending Medley is the most contentious- fans are split on whether it's the best level ever, as it's comprised of the Final Boss songs from previous games (plus "Two-Sided Lovers"), or the laziest, as it borrows heavily from their old charts, is the game's only 10-star difficulty song (previous games typically had two), and doesn't include any new songs.
      • On the point of DLC, X turned out to have the smallest tracklist in the entire series, beating out the first game, and that's with Medleys included. It did get DLC to move it out of this category, but X has also received the smallest DLC support in the entire franchise; the amount of extra songs added through DLC is a whopping two.note 
      • X also managed to reintroduce the Randomly Drops mechanic used in the first game; this, combined with a gated unlock system that required enormous amounts of grinding to get past, drove it into the deep end of Scrappy Mechanic.
      • Ironically, X is considered to have some of the best Original Generation tracks in the franchise; "Name of the Sin", "Satisfaction", and "Amazing Dolce" are very well-received tracks. The mixes of some songs that appear in Medleys have also received positive reception, such as "Two-Sided Lovers" in the Ending Medley and "This Messed-Up Wonderful World Exists For Me" in Cool Medley ~Cyber Rock Jam~, which makes it all the more frustrating for the fans that they can't appear as full songs.
  • Counterpart Comparison: When "Brain Revolution Girl" came out with X, fans of F 2nd noticed right away how similar its dance is to "Blackjack".
  • Crack Is Cheaper:
    • Getting all of the outfits in Arcade costs what is effectively a small fortune due to being an arcade game. You're better off just grabbing what you like as opposed to getting as many as you can.
    • Mikudayo costs a ridiculous sum or requires significant effort to acquire when it isn't a DLC item. In the console version of F, it is the most expensive object in the game, requiring 393939 DP to purchase. In Arcade, it costs 1500 VP. To put that into perspective, the Swimsuits, traditionally among the most expensive items in the series, cost 1000 VP. The Mikudayo Skins are also at the steep price of 24 DIVA Tickets, which amounts to nearly a month of playing Arcade once a day.
    • Even as far as modern console games go, Future Tone is a little on the steep side, costing at the very least 11,700 yen to purchase all the content, assuming you buy the Season Pass instead of purchasing packs separately. Thankfully, the localization reigns it in a little, forgoing the Arc Number pricing for a reasonable $30, and $54 for both packs combined, with a price of $25 for the season pack.note 
  • Critical Dissonance: X received high scores all across the board from numerous reviewers, keeping in line with the positive critical reception of the series thus far. Its reception by the fans, however, is a lot more divisive, due to many long-time players complaining that X basically took out nearly everything enjoyable about the series.
  • Ensemble Darkhorse: Gumi seems to be a popular addition to the series, judging by her mirai reaction. Unfortunately, her licensing is difficult to negotiate for Project Diva.
  • Even Better Sequel: The first game was considered decent in its own right, if not a little hampered. Then 2nd rolled around and basically set the standard for the series going forward, with major mechanical overhauls and the introduction of story PVs and the infamous EXTREME difficulty.
    • Project Diva Arcade: Future Tone is considered the de facto version of the arcade game, to the point that it's largely forgotten that Arcade isn't just to indicate it's an arcade game. Not helped by the PS4 version.
  • Fanon Discontinuity: If a name in the localized version differs too greatly from the widely-accepted version, it is usually ignored, as fans prefer to refer to the songs with the names that they're comfortable with. This usually applies to the Woolseyisms that are kinda out there, like "Urbandonment" and "The Lost One's Weeping", the latter of which no one can agree on the translation of, and some of the Too Long; Didn't Dub titles like "Roshin Yukai" and "Arifureta Sekai Seifuku".
    • Not helped by Future Tone's english release reverting and re-translating several names, as if even SEGA can't decide the actual names.
  • Fridge Horror: Miku may be a tyrant in Sadistic.Music Factory, but she's also doing what she does simply for the sake of survival and escaping the factory (not getting the Chance Time bonus) means leaving her to starve to death!
  • Genius Bonus:
    • In the mirai and Arcade/Future Tone PV for "1/6 -out of the gravity-", the moon segment of the song features strings of numbers flying in the background. There are two distinct strings among them; one is "6.673*10^-11*7.35*10^22/1738000^2 = 1.62m/s^2", or the equation that calculates the rate of acceleration for gravity on the moon. The other is "F=G*M*m/r^2", or the equation for Newton's universal law of gravitation.
    • In the mirai PV for "Kokoro", the lines of code that can be seen in the background when Rin receives a heart are written in Python.
    • The video for "Systematic Love" includes C++ code. Compiling and executing it will write an ASCII heart with "SYSTEMATIC LOVE" written in the middle of it.note 
  • Germans Love David Hasselhoff: Project mirai DX received lukewarm reception in Japan due to being just an Updated Re-release of Project mirai 2; why buy an entire new game just to get one new song and some extra goodies? In the West, it's the first Project mirai game to get a localized release and therefore was much better received.
  • Harsher in Hindsight: The poor handling of "Kagerou Daze" in both the localized version of F 2nd and its exclusion in Arcade/Future Tone, both the result of licensing, hurts that much more when you realize that the game IA/VT Colorful has the entire rest of the Kagerou Project songs on its own setlistnote , which can potentially be taken as a sign of favoritism...
    • From what has been said, the composer forbade use of english lyrics on Kagero Daze, and the song has only been in a Project Diva concert ONCE, suggesting that the licensing may well had been revoked around November 2014 for any use.
  • Hilarious in Hindsight: Miku uses a Fei-Yen costume in extend. Over a year later, and on a totally different system, Fei-Yen turns into a familiar idol...
  • It's Easy, so It Sucks:
    • The lack of an Extreme difficulty level is one of the more common criticisms of the Project Mirai series. Even the addition of a "Super Hard" mode in DX fails to completely remedy the issue, since it only applies to 6 out of 48 songs and is still easier than the other games' Extreme difficulty.
    • X came under fire for this after F 2nd had given the series a severe Difficulty Spike; even those who felt that F 2nd was too difficult found that X was too easy even compared to f/F.
    • Easy and uninteresting charts can also cause players to dislike a track. Note that "hating playing it" and "hating the song" can be separate; some players dislike the chart but are fine with the song.
  • It's Hard, so It Sucks: In the same tune as in above, players can also dislike a track because of its difficulty.
  • Just One More Level: Project Diva Future Tone lives for this trope.
  • Les Yay: Miku and Rin have a lot of this in the bonus materials for the games.
    • In Project Diva F and F 2nd, many of the Miku and Rin duet songs are heavily on the shipping, with Summer Idol having them consider going out with each other, and singing about how they like the other in Colorful X Melody.
    • And of course there's Luka and Miku in Magnet.
    • "Reverse Rainbow" has Miku kissing Rin (or Luka).
  • Love It or Hate It: Due to the design choices in X, PVs can be very hit or miss for a lot of fans.
  • Market-Based Title: mirai Deluxe is mirai DX outside of Japan. Despite this, all versions of the game have Miku saying " Project Mirai Deluxe!" when you highlight the game's icon on the 3DS's Home Menu.
  • Memetic Loser: "packaged", which is often derided for being one of the easiest EXTREME charts ever made. Its F 2nd variant is actually easier than F songs on Hard.
  • Misplaced Nationalism: Due to some Unfortunate Implications of Japanese imperialism in "Senbonzakura", the song was removed for the Korean localization of Mirai DX.
  • Most Wonderful Sound: "PAAFEKUTO!", and to lesser extent "EKUSERENTO!".
  • Narm: Gumi and Rin's "swimming" in "Invisible" in mirai DX.
  • Nightmare Fuel:
    • The music video of Sadistic.Music Factory in F. The song itself could be pretty scary if one takes into account the lyrics (which are about being trapped in a factory and forced to make music for a mechanical tyrant for the rest of one's life) and the frightening robotic monotones, but combine all that with the Chance Time ending...
    • The Disappearance of Hatsune Miku, which has the song become garbled, as well as there being interference and odd glitches in Miku's movements, constantly. According to Word of God, Miku is being deleted while attempting to complete the song. The end of the song is when she finally crashes due to it.
    • Toward the end of Disappearance, Miku can be seen banging at the screen with her fists as though begging the player to help her. And at the end, she says a cheery goodbye before just...freezing up with a sad smile on her face as her voice speaks eerily in the background.
      • Thankfully averted with its answer song, The Intense Voice of Hatsune Miku, where the full length version's opening lyrics have Miku celebrate being alive, and she promptly finds a solution to the bad ending of Disappearance with one of the fastest denouements in Vocaloid history!
    • Pinky Swear from F 2nd is a subtly off-kilter song with an equally off-kilter video. Its creepiness is mostly due to the weirdness of the visuals and implications of the lyrics until the end of the video implies that Miku has not only cut off her pinky finger as promised in the lyrics but has incorporated it into the bento she's shown making for her crush.
    • The Mikudayo head/costume is either hilarious or this, depending on taste.
    • The entire video of Kagerou Daze wherein Miku stumbles onto the site of an accident and repeatedly gets killed or injured trying to avoid the domino effect of everything that goes on. Sure, it's a Catapult Nightmare for each event so she knows how to avoid it next time, but the video still ends with an accident on stage and Miku vanishing completely.
    • The video of NegaPosi*Continues may definitely startle people the first time they see it as the game Miku is playing appears happy and normal at first, but when repeated continues occur, the game seems to be slowly corrupting, as the music slows and the colors become inverted, with Miku herself appearing to glitch, especially in a certain section that can come unexpected as static shows and Miku's head moves completely erratically.
    • "LOL-Lots of Laugh" in Mirai DX features a figure in a giant rabbit costume. The way it just suddenly appears in a deep close-up and just stares at the player for several seconds is just jarring.
      • Arcade's version of the PV adds a comical "boing" effect to the bunny's reveal, but somehow makes it look creepier than in mirai DX.
    • Also in Mirai DX, the PV for "Matryoshka" features some creepy parts such as X-ray photos showing blood spreading through a person's lungs and wrists, a moment where a butterfly's wing is being cut off with a pair of scissors, and black-and-white pictures of the Nendoroid characters, each sporting a Slasher Smile, splattered with paint that makes it look like they are covered in blood.
  • Pandering to the Base:
    • Project Diva F 2nd is full of it, from English lyrics for all but one of the songs on the localized version to the return of some of the most famous (and infamous) songs and costumes from the PSP games.
      • Future games play with this trope. Mirai DX had no translated lyrics and didn't translate any new song titles, though X went back to a full English translation. Future Tone understandably does not have translated lyrics either, but even reverts some of the existing translated titles such as Urbandonment (Torinokocity) and Clockwork Clown. (Karakuri Pierrot)
    • Project Diva has been on a handheld and the PS3 ever since it was first released. When the series migrated to the PS4, with Project Diva X, however, it stayed true to its roots, and it's fanbase, by announcing it will be releasing first on Playstation Vita.
      • Averted for the US release of X, which was released on Vita and PS4 simultaneously.
    • The Ending Medley in Project DIVA X has, for Intense Voice Of Hatsune Miku, purely the fastest part of the song.
    • Project Diva Future Tone is a complete version of the arcade game as of mid-February 2016, missing only Ageage Again and it's associated module, which released in the last week of that month, with a grading system and other features that would be impossible on any other release.
      • Notably, Ageage Again, along with a handful of very popular Mirai songs, was added with the very first Additional Song Pack.
  • Periphery Demographic: The games are, for the most part, aimed at existing Vocaloid fans, as they expect you to have at least some tangential knowledge of the Internet culture surrounding them - how would you know that Rin likes oranges or Kaito likes ice cream unless you're aware of the memes associated with them beforehand (or following a guide)? Following the localization of f/F into English, however, it gained a small fanbase among non-Vocaloid fan Vita owners due to the lack of games on the console along with the series's collection of indie music, extensive costume system, and aversion of The Problem with Licensed Games in terms of its quality as a series of rhythm games.
  • Play the Game, Skip the Story: Pretty much no one plays X for the included story mode, which gets a lot of focus as being one of the game's highlights. Players who imported the game but are unable to read anything are thus subjected to cutscene padding interspersed between songs during cloud and event requests. Some players who didn't import it also ended up skipping it, due to it ending up being an Excuse Plot.
  • Scrappy Level:
    • F:
      • "Glasses", in addition to having a very awkward tempo that's annoying to play, just doesn't sound all that great.
      • "Nyanyanyanyanyanyanya!" is very disconcerting to play due to the sudden tempo shifts, which at times feel rather shoehorned in purely for difficulty. Some players also find it repetitive and annoying.
      • "Stay With Me" is very slow, even for slow songs, and MEIKO's singing pitch, especially in the chorus, can come off as grating.
    • F 2nd
      • "Clockwork Clown" is fairly panned by the players.
    • X:
      • "LOL -lots of laughs-" is considered to have an incredibly bland PV, in a game where all the PVs are variations of dance routines. Contrast to its mirai and Arcade/Future Tone rendition, whose PV is generally considered to be fantastic.
    • mirai DX:
      • Surprisingly, "LOL -lots of laugh-" also qualifies for this game. Mostly because players just dislike the Jump Scare.
    • Future Tone:
      • Virtually all of the above are included, plus several songs, like Pink Moon, which are just Nico Nico Douga videos, since they haven't had an Updated Re-release in any of the games.
      • "Pane Dhiria" is possibly the most divisive song in the game due to many players considering KAITO's tuning in the song simply bad; his singing pitch is unnaturally high for his software and the song often has very weird inflections that don't sound at all natural.
  • Scrappy Mechanic:
    • The star links in F 2nd weren't popular in players. Their timing is often inconsistent with the rest of the song, either much faster or much slower, which throws a lot of players off on their first try. As well as many, many tries after that. It was removed in X along with the wide star notes.
    • Chance Time in the original PSP game can feel like this at times as missing a single note on it in several songs is what could very easily separate a Standard and Great score. It's still this in later games due to heavily weighing one particular late-song section over the rest of the song.
    • Buying a new game means playing all the easier charts to unlock all the harder charts. Part of the charm of Project DIVA is its relatively high difficulty for an official rhythm game, so veterans tend to dislike mulling through fluff to get to the good stuff. Future Tone at least gives Hard charts from the outset, and Arcade has no unlock requirements due to being an arcade game.
    • X's cloud and event requests forces you into a repetitive cycle of Level Grinding in order to gather crystals and unlock all the modules and gift items, most of which are Random Drops. Needless to say, its execution has proved near-universally unpopular.
  • Screwed by the Lawyers:
    • Jin is evidently a stick in a mud when it comes to licensing out stuff; "Kagerou Daze" is the only song to not have English lyrics due to this reason, and it's the only F 2nd song not to get ported to Arcade/Future Tone due to licensing.
    • The Chiffon Module for "Just Be Friends" got the axe in F 2nd due to complications involving its designer forcing its removal.note 
      • Notably, it IS in Future Tone... including the Western PS4 release, due to the legal issues being partially resolved. Notably, The original creator is no longer credited.
  • Sequel Displacement:
    • The first game is often ignored as far as talking about the series as a whole goes. It started to pick up when 2nd came around, or for a more extreme example, F due to it being the first worldwide DIVA game, so both Project DIVA and its differences from practically the entire rest of the series are rather overlooked.
    • f is often forgotten in favour of its Updated Re-release, F, which includes every song and properly attributes several modules to their correct song.
    • The initial version of Arcade is practically forgotten, even by SEGA, with the Arcade and PS4 version both being solely referred to as Project Diva (Arcade) Future Tone.
    • In non-Japanese regions, Hatsune Miku and Future Stars: Project mirai basically doesn't exist. Its sequel, mirai 2, is far more recognized, since it's used as a base for its localized follow-up, mirai DX.
    • In a very rare case where this trope applies to a particular level, "Sakura Rain" is acknowledged by fans to be a returning song in F 2nd. However, it's rather difficult to find footage of the original PV for the song, since the last game "Sakura Rain" was in was the very first game, six years before F 2nd came out with its version. Even Arcade/Future Tone doesn't acknowledge the original version, since the version ported to Arcade/Future Tone is the F 2nd version.
  • Slow-Paced Beginning: For veterans of the series, playing a new game means having to unlock every single Hard and Extreme chart from scratch to get back into the swing of things, going through the comparatively effortless Normal charts that can get tedious pretty quickly.
    • Future Tone removes this issue, with every single song having Hard unlocked immediately, and a large number of songs don't even HAVE Easy charts, and the Normal charts are far from effortless.
  • Special Effect Failure:
    • Whenever someone wears the Mikudayo head, but not the Module, their hair clips through the accessory if they have a hairstyle larger than it. Averted with the Module, which flat out replaces the character.
    • Mikudayo herself causes a lot of incredible screw-ups due to being extremely disproportionate. This includes the camera constantly zooming in on her forehead (where a regular model's head would be), lack of limbs causing her dance routines to look hilariously disjointed (which gets even better with supposedly "provocative" dances, like Blackjack), and constant clipping issues with various props. There are even song-specific things, such as KAITO's violin being removed entirely in "Cantarella ~grace edition~" and Mikudayo clipping through the floor in several Medleys in X.
    • When "Amatsu Kitsune" was ported to Arcade/Future Tone, many considered the visual effect for the comet worse than the original; it now uses a particle effect that makes it difficult to discern that it's a comet.
  • Spiritual Adaptation: The gameplay of mirai 2 and DX is basically Groove Coaster with Vocaloids.
  • Sturgeon's Law: Averted. The TV Tropes Corollary to Sturgeon's Law (fans cannot agree on which 10% is good) is averted too, as the underlying Vocaloid community has objective ways of deciding how good a particular song is. This in turn helps Sega producers pick the objectively best songs. Good Vocaloid music is more likely to be good because it is all indie music that has been singled out as good by listeners. Tracklists have generally been strong across all games.
    • This is a major point of contention in Future Tone, where some people will find that 10% of the songs in the game will be songs they will only play once or twice, but also at least 10% of the songs which they'll play again... and again... and again...
  • Surprise Difficulty:
    • "Nyanyanyanyanyanyanya!" starts off with the memetic tune everyone knows and loves. Then the song starts to change in both style and tempo, at which point a lot of players' runs crash and burn.
    • mirai DX is an otherwise easy game for the most part. Then you hit Gaikotsu Gakudan to Riria...
  • Tastes Like Diabetes:
    • The inclusions and actions of the chibi Vocaloids in "God-Tier Tune" make it the most adorable apocalypse ever.
    • Love-Hate in F 2nd is made of this.
    • The Project Mirai games are done entirely in the chibi style. Their cuteness can be downright lethal!
    • Everything about "LOL -Lots of Laughs-" in mirai. Its X video also qualifies, although not quite as much.
    • The "Cute Medley" in X.
  • That One Achievement:
    • Several of the F/F 2nd Trophies can become this not due to difficulty, but because of grinding. For example, both of them have a trophy requiring you to view all loading screen images... with over 100 different pictures this can make it really annoying waiting for the one final picture to show up. Another one requires you to view every single music video in the game, and using the playlist to play them automatically after each other doesn't work - you have to manually start each of them.
    • So many in mirai, due to a combination of vague Stamp descriptions and how reliant some Stamps are on factors beyond your control, such as Stamp #59, which you can kiss goodbye if you don't know anyone with the game or aren't online Friends with anyone who also has the game, or most of the Mirai Room Stamps, which are heavily based on random chance.
    • Averted with Future Tone, which only has achievements for doing tasks in the game which are spelt out in plain terms. Also, you only need to playnote  ONE song on Extreme difficulty, not all of them.
  • That One Boss:
    • The Sphinx in "Hello Planet" for foreign players. It's a minor Puzzle Boss that asks a question, then allows the player to select from three answers; the right one will defeat the Sphinx and allow you to pass. If you mess up, the Sphinx laughs at you and throws you another question. Foreign players of 2nd and Extend will run into trouble due to the fact that being unable to read anything makes it significantly harder, and the order of the answers are randomized each time, preventing players from learning repeat questions and answers easily without the use of a translation guide.
    • MEIKO in Puyo Puyo 39! is feared by players new to Puyo Puyo because her AI is set to fill the first four rows with Puyo, which oftentimes sets up devastating combos.
  • That One Level: Every game has a handful of songs that can be absolute devils to play.
    • Whole series:
      • "The Intense Voice of Hatsune Miku", full stop. Its 2nd incarnation has gained infamy among fans for being notoriously brutal in terms of design, possessing absurdly long drumming chains that range anywhere between five and twenty seconds. It also appears in Arcade and F 2nd, but it was nerfed slightly in the latter. The last twenty seconds also makes an appearance in X using a variation of the F 2nd chart.
      • cosMo music in general. In fact, a cosMo song has been the Final Boss of every game in the entire main series except F 2nd.
    • F:
      • "Sadistic Music Factory". Everything you want about a hard song: rapid tempo, drumming, and by the time you get to the end, the entire rhythm just completely falls apart.
      • "Nega*Posi Continues". The tempo is so fast that mere button pressing won't suffice; you have to master a slow form of drumming because the normal notes are too fast to push normally but also too slow to drum normally.
      • "Rin-chan Now!". Extremely quick tempo that utilizes a very repetitive note chart that quickly ramps up in difficulty as you push on through the song.
      • "Nyanyanyanyanyanya!". This one takes some time to get used to due to the sudden tempo shifts that can easily throw off unaware players.
    • F 2nd:
      • "Envy Catwalk". While the tempo isn't too fast compared to other difficult charts, this chart has a nasty obsession with drum chains and Star chains, and it lets you know it.
      • "Two-Sided Lovers". It has the same drum chain problem that "Envy Catwalk" has, but worse. The Star Links are of no help either.
      • "2D Dream Fever". In addition to a particularly rapid tempo that has a tricky speed-up portion in the middle, the accompanying video is a nightmare for players sensitive to explosive colors, which can make it difficult to watch for incoming notes.
    • X:
      • "Raspberry*Monster". This one can be a bit unusual because while the chart itself is pretty lax for an EXTREME, if you play on the accompanying stage, it can really hurt for people sensitive to bright colors.
      • "Urotander, Underhanded Rangers". It's an invoked instance of Fake Difficulty (the song is about a team of superheroes who use dirty tricks to win), so naturally it uses every dirty trick to screw with the player. It goes to show that you will not get a Perfect on it the first time you see the chart, and that's a guarantee, not a challenge. It also drops 12 different modules that can't be obtained from any other song, so prepare to grind it a lot if you want to unlock everything.
      • "The Final/X Medley". This is somewhat befitting of a medley that is made of That One Levels. Shifting, rapid tempos and drum chains abound with lots of Wide Notes spliced into seemingly random sections, in addition to a cameo appearance by "The Intense Voice of Hatsune Miku."
    • mirai subseries:
      • "Gaikotsu Gakudan to Riria". It's gained notoriety as one of the hardest songs in the entire subseries, in an otherwise relatively easy game. It's so hard, it rivals Super Hard charts in difficulty. While the BPM is low, the chart itself is rapid and furious, chock full of half notes and drumming sections coupled with button switching and Wide Notes spliced in between. A first-time player going into the Hard chart for the first time is in for a rude awakening.
      • "Invisible". It's the second fastest song in the game, losing only to "Matryoshka", but unlike "Matryoshka", it makes up for the lack of cosMo music by having a lot of Motor Mouth segments in the main verses that are coupled with surprisingly difficult lengthy, rapid button switching chains and choruses that literally require dancing your thumbs over all four buttons, making for what is possibly the game's hardest chart.
      • "Matryoshka". It's a fairly frenetic song that also happens to be relatively long. It's possible to start missing notes later on due to how quickly the song wears you out.
      • "Hello/How Are You". Haven't memorized where the song uses half and quarter notes? Prepare for some major suffering, even in relation to mirai songs.
      • "glow". The instrumental part is extremely messy to read as it requires serious button-dancing to pull off.
      • "Ageage Again". The chorus is rather intimidating due to it involving relatively quick 11-note and 5-note chains that involve button swaps.
      • "1925". This song loves throwing half-notes in your face. If you haven't picked up drumming yet, this is a crash-course lesson in it. Not to mention the final chorus, which combines half-notes and Wide Notes.
    • Arcade/Future Tone:
      • If it's on this list, save for "Invisible" and "Matryoshka", which are GUMI songs and therefore cannot appear in Project DIVA, it's also a That One Level in Arcade/Future Tone. These games are also magnitudes harder than any other game in the franchise, and quite a number of charts, like most of the below-mentioned tracks in 10★ Master Course, are even more difficult than their main series incarnations.
      • "PoPiPo" deserves special mention; it gets upgraded to a whopping 10★ in EXTRA EXTREME, as it not only involves high-intensity drum chains linked together in addition to chords thrown everywhere, half the song is literally made of Slide Notes. They're very often spliced in between normal notes with extremely little breathing room between them as well, so a majority of the song is made of frantically Button Mashing while keeping one hand on the Slide Bar. Future Tone does make it easier with the use of analog sticks instead of the Slide Bar.
      • "Denparadigm", one of the only Arcade tracks to have the honor of holding a 10★ rating on EXTREME. This song is breakneck fast. It's possibly the fastest song in the entire franchise, and that takes Intense Voice and Disappearance into account. And a good portion of the song is drum chains. Have fun.
      • The console release of Future Tone also has a special treat for the really masochistic players: The 10★ Master Course in Survival Course Mode. "Two-Sided Lovers", "2D Dream Fever", "Nega*Posi Continues", and "The Intense Voice of Hatsune Miku" on EXTREME difficulty, capped off by "The Disappearance of Hatsune Miku" on EXTRA EXTREME difficulty, the latter of which is considered by-and-far one of the hardest official charts ever made, period. This in a mode where LIFE recovery is halved and you carry one health bar between every song, back to back to back to back to back. If you think you're up to the challenge, God bless your soul.
    • Miscellaneous:
      • Don't try to do any of the Motor Mouth songs on BREAK THE LIMIT difficulty in Miku Flick. Getting a Perfect is actually, literally impossible.
      • A favorite pastime of Edit Mode users is to make custom charts that border on "virtually impossible".
  • They Changed It So It Sucks: This is one of the central complaints against X. Unusually for this trope, it's because they changed it back; the series had been riding on the 2nd formula for four games, then X suddenly goes back to what the first game did, which 2nd was meant to fix. The fandom were NOT happy.
  • Translation Correction:
    • Some slight instances of Engrish were corrected for the English release of F. For example, "Rest X Notes" seen during a Technical Zone became "Notes Left: X".
    • For F 2nd, further translations were done, with the vague 'WORST/AWFUL' note designation now being called 'MISS', and the 'LOUSY' rating being replaced by the more optimistic 'SO CLOSE'.
    • Subverted in Mirai DX, where "MISS" notes are suddenly "WORST" again, and "COOL?" notes (hitting a note with the wrong button) become "MISS" notes.
    • X changes the "Module Get" message to "New Module", rare modules say "New Rare Module" and the "Quest Clear" message is "Request Complete".
  • Visual Effects of Awesome: Present in many, many of the PVs, especially in F and F 2nd with "World's End Dance Hall" and "Meteor" being some of the best-looking videos in the series. Many of these are even improved via graphical enhancements through an Arcade port.
  • Woolseyism: Several instances of this in F. For example, one song that would literally translate to "Left-Behind City" was named Urbandonment, and Remote Control became Remote Controller, which is appropriate given the video has the Kagamines controlling each other through their devices.
    • In F 2nd, Narisumashi Genga, normally translated as "Spoofing Genga", became the punny-named Doubleganger, due to what everyone associates Gengar with nowadays. The "Hatsune Miku" outfit from DIVA, which is different from "Hatsune Miku Original", was also translated as "Ha2ne Miku" to avoid confusion and make them distinct, since the original way to tell them apart is impossible in English.
    • In X, Pink Stick Luv is translated to Pincostique Luv in an attempt to be subtle.
    • X has a brief scene where Rin and Len get into a fight, in which the localization has them start slinging pun-related insults at each other. Apparently, the original draft for the localized text was a lot less punny but a lot more savage.
  • What Do You Mean, It Wasn't Made on Drugs?:
    • The PV for "Matryoshka" is weird. It manages to be almost as, if not more, creepy than the original video, in spite of (or perhaps because of) the use of Nendoroids.
    • "Denparadigm" is one of the only songs with an Arcade-original PV that isn't made in Edit Mode. It also happens to look like a crack-induced fever dream hyper-compressed into three minutes and set to catchy, nonsensical background music.
  • Widget Series: Unlike Dance Dance Revolution or beatmania, and Rock Band and Guitar Hero in the West, Vocaloid was largely a niche property when the first game was released. Then SEGA asked if the newest game should be localised. The reaction was immediate. SEGA never looked back.
  • Win Back the Crowd: Project Diva Future Tone seems to be intended to do this, being literally the entire song library of the games prior to X, with virtually no pointless grind, compared to X's excessive repetition of the entire song list, returning to only needing you to grind, at a much more affordable, compared to every other game, in-game price for the modules and accessories. note 

http://tvtropes.org/pmwiki/pmwiki.php/YMMV/HatsuneMikuProjectDiva