%% Zero Context Examples are not allowed on TV Tropes. The entire Guitar Hero folder was one big list of ZCE's, and as such all of those examples have been placed in the discussion page. Please do not put the folder or examples back without giving the examples context first.
->''Wearing a bucket on your head will not increase your chances of beating this song, or maybe it will."
-->-- The loading Screen for "Jordan" in ''VideoGame/GuitarHero 2''

If it helps, these infamous [[ThatOneBoss boss songs]] also tend to be SugarWiki/AwesomeMusic. Often times though you'll play them so many times that they'll [[EarWorm echo in your head for life]].

'''NOTE:''' Due to how a majority of these {{Rhythm Game}}s work (mainly in that the player typically gets to pick their songs), looser definitions of BonusBoss are being applied for this section. Songs that can be expected to be played in any given session are perfectly fair game; as a general rule, if a song is rated ''x'' but it's harder than songs of its rating and it may as well be rated ''x''+1, it's most likely an example. Final Bosses should be compared to where the difficulty curve would put them before being listed, and bonus songs and DownloadableContent should be added sparingly. [[WakeUpCallBoss Wake Up Call Bosses]] should be fair game unless there is a particular reason why they must be done at/by a specific point (e.g. Career Mode in older ''VideoGame/GuitarHero'' games), in which case they should be strongly considered before addition to this page.

Please don't add examples of songs used in games that use user-created simfiles, like ''VideoGame/{{StepMania}}'' or ''VideoGame/{{osu}}!'', unless they are of major significance, as anyone can make an obnoxiously-difficult chart on those software.

''ThatOneBoss/DanceDanceRevolution'' now has its own page.


[[folder:Songs That Are Consistently That One Boss Across Multiple Games]]
Because of most modern arcade rhythm games regulating song lengths to approximately 2 minutes, give or take about 20 seconds, as well as arcade rhythm game developers in Japan being [[FriendlyEnemy rather buddy-buddy with each other]], it is possible for songs to not only appear within multiple games by the same company (Konami's Franchise/{{BEMANI}} games cross songs over pretty much all the time thanks to online events) but even multiple games by different companies. Often, whenever two games have a crossover collaboration, one or two of the hardest songs from each game will be crossed over to the other (alongside a few wider-appeal songs) with charts that are just as equally difficult.

Band games ''VideoGame/GuitarHero'' and ''VideoGame/RockBand'', due to being based around the same genres of music, share some common songs, and if a song is in both games and it's super hard in one game, expect it to be super hard in the other game as well. Sometimes with [[DamnYouMuscleMemory different charts to screw you over further]]!

* If you see "FREEDOM [=DiVE=]↓" by xi in a rhythm game or rhythm game simulator, expect it to have extremely difficult charts featuring 16th notes running at 222.22 BPM[[note]]In other words, the game expects you to tap at a rate of ''nearly 15 times per second.''[[/note]]. Clearing its "[[IdiosyncraticDifficultyLevels FOUR]] [[HarderThanHard DIMENSIONS]]" charts in ''Lunatic Rave 2'' and ''osu!'' is something of a rite of passage. In ''VideoGame/{{Cytus}}'', it is one of the "big three" charts alongside ''Codename : Zero''[='=]s and ''L2 (Ver.B)''[='=]s Hard charts, being exceptionally difficult even by level 9 standards, it is the ''first'' song of Chapter 10, the final main chapter of the game, and just to add salt on top of the already-existing salt in the wound, it has a hidden Hard chart with 2,000 notes over the course of 2 1/2 minutes that makes every player wonder if whoever designed the chart had a really bad day. In ''VideoGame/{{CHUNITHM}}'', not only does it have a level 13+ Master chart, it also has a [[GimmickLevel World's End]] chart. Except, unlike other World's End charts, "FREEDOM [=DiVE=]"'s sole gimmick is "this is what its BMS charts looks like and now you're going to die."
* If you see [[Music/DragonForce "Through the Fire and Flames"]] in a music game (especially a guitar based one) expect it to be absolutely brutal. In VideoGame/RockBand and GuitarHero, its one of both franchise's most infamous BonusBoss and has ThatOneAttack [[OhCrap as its intro]] and some nasty solos throughout. In VideoGame/MusicTimes, its a 10+ chart.\\
In the ''VideoGame/{{GITADORA}}'' "classic" games, its Drum, Guitar, and Open Extreme charts are rated 92, 94, and 95 (out of 99), respectively, and in the ''XG'' games and later its Guitar Master chart is rated a 9.55 (out of 10.00). However, [[ButForMeItWasTuesday there are many other songs with charts this difficult]] so the song loses some of its TOB status.
* 冥 ("Mei"):
** "Mei" was first introduced in ''VideoGame/{{beatmania}} IIDX 12 HAPPY SKY'' as that version's [[TrueFinalBoss One More Extra Stage]], and is actually a modestly difficult song to normal clear (where you don't automatically fail the song if your groove gauge bottoms out), but Mei is by far and away one of the hardest songs to hard clear, due to a part around the middle where the BPM incrementally increases during a complex arrangement of notes, speeding up until its reaches the point where you're hitting almost ''30 notes per second''. Over 10 years later, in a series that constantly tops itself in difficulty, Mei remains an incredibly sturdy song (many players still consider it the hardest song in IIDX), and has remained the final single player Kaiden (the highest difficulty of [[BossRush class mode]]) song of every arcade entry.
** In ''VideoGame/{{DanceDanceRevolution}}'', its Challenge charts are rated 18 out of 20, with 730 notes across its Challenge Single chart and 684 notes across its Challenge Double chart.
** "Mei" even put in an appearance in ''Toy's March 2'', boasting [[SurpriseDifficulty a chart that one would not expect in a rhythm game aimed at younger players]].

[[folder:Rock Band Series]]
* Similar to "Free Bird" in ''Guitar Hero II'' is "Green Grass and High Tides" from ''VideoGame/RockBand''. It isn't so much that it's boringly easy for any period of time. No, it's the fact that the song itself is long and mostly moderate in difficulty, then after nearly eight minutes, it throws [[ThatOneAttack 15 seconds of extremely fast zig-zag]] (an eternity for all but the most skilled), shortly follows it up with ANOTHER 12 seconds of zig-zag (not Overdrive bluffing your way through that one), and ends the song with 20 seconds of extremely fast three fret rolls. It's one thing to lose because you lack the skill required; it's another to lose after eight minutes because they throw in the music game equivalent of a cheap shot.
** That's not the problem, in fact, mainly because hammer-ons and, more importantly, pull-offs still apply to solos. The REAL difficulty is that the strummy part (in the second solo) is SO FAST it fits just under the strum limit of notes per second (the NPS is about 0.20 below the limit there, get over the limit and you'll accrue a crapton of misses). It has reached the point that it's less about FC'ing the song, and more about doing a perfect run BESIDES that part.
*** Additionally, not only has that part of the solo been independently FC'ed, [[http://www.youtube.com/watch?v=VhgbhzAh3-8 the entire song has been FC'd as well.]] the exact number of notes? 3058.
*** Which number the game [[OhCrap considerately tells you in one of the possible intro screens]] when you start a solo run on Expert guitar.
** Of course, there is the crowning king of difficult guitar segments...Through the Fire and the Flames on DLC. While the song was hard enough when released on Rock Band 3 (Operation Ground and Pound would end up being harder), the Rivals update to Rock Band 4 also brought with it a rechart for the guitar part, adding sextuplet tapping to the first solo and a 32nd-note tapping section (with green anchored) to the last solo, in addition to other adjustments like fixing forced strums and [[DamnYouMuscleMemory changing just enough notes to throw off people who learned the song prior to the update.]]
** ''VideoGame/RockBand'' also has a good number of these on drums. One particularly notable example is "Foreplay/Long Time", where the instrumental "Foreplay" section features a fast, repeated triplet pattern of two reds and a green or blue and bass hit; the main difficulty is that there is no way to hit this pattern with the standard alternating left and right hand hits. And it comes up a lot during those first two minutes. Comparatively, the remaining "Long Time" section of the song is incredibly easy, but the main difficulty is getting there...
*** Ironically, even the original drummer may not have been able to pull this off. The song is ''considerably'' easier on a real drum set, since the bounciness of the drum head helps you do the snare double-hits without killing your arm.
*** While that part is ''definitely'' easier on a real drum set for the aforementioned reasons, a relatively decent drummer should be able to compensate for the lack of bounciness. It is quite possible to hit that pattern without alternate sticking, you just need a good left wrist.
*** The Cover for Run to the Hills is especially crazy on the Hard difficulty (on drums), compared to the songs leading up to it, and indeed the finale after it. The developers themselves even said that some of them have more issues on Hard difficulty than on Expert. The DLC version remedies this by NOT switching snare and hi-hat and using an eighth-note run for the hi-hat instead of a "The Hand That Feeds" (Expert) pattern.
** It has to be said that, being much closer to how real drums are played, this is less of a game example and more of a TruthInTelevision case of ThatOneBoss.
*** Similarly vocals. If you can sing, there's little difficulty to be found at any level (save for very specific songs - I Get By (see below) being one of them). Otherwise, only Easy for you.
** The other infamous career-stopper for Drums on Expert is "(Don't Fear) The Reaper". It's pretty easy up until the guitar solo, which throws rapid-fire bass pedaling and a long sequence of snare rolls at you. And because of how the game engine works, it's all too easy to get off-beat and fail five seconds later.
*** Not to mention that after beating this part, there's still a whole lot of tough drumming for your fatigued and overly-excited body to perform.
*** Even the ''vocalist'' doesn't get away unbruised from Don't Fear the Reaper. The song is easy enough to sing, but during the instrumental parts of the song you need to clap your hand on the microphone (in a very specific manner, may I add) to simulate playing the cowbell. The outro of the song has you doing this ''96 times in a row''. By the time you're done, the palm of your hand resembles a raw steak, and will be thinking "[[MemeticMutation No more cowbell!]]" (There are other ways to do this, such as hitting A on the controller, or... taking a spare drumstick and hitting the microphone like a cowbell.)
** You don't even wanna think about Flirtin' With Disaster on drums, do you? The trick is the chorus and opening. But after that, its off beat bass hits.
** Over half of the bonus songs (which you have to play to complete the "Endless Setlist", so they don't really count as "bonus" per se) are insanely difficult on vocals, but the worst by a long shot is ''I Get By''. Especially the middle bit, with its insanely fast tonal shifts and rapid-fire vocals, most of which still require you to actually be in tune (which is not the case for most other songs this fast).
*** That song is nothing compared to [[WesternAnimation/SouthPark Timmy and the Lords of the Underworld]] (on guitar at least)." This song, on medium, makes "Maps" on Hard and "Run For the Hills" on medium look easier than the tutorial. It has a ridiculously hard note pattern and speed, '''four seconds in'''! It repeats this three more times before the vocals start.
** [[Music/TheWho Young Man Blues]] on drums. It was released as DLC in July 2008. It was not FC'ed on Expert until ''July 2012''.
** Another final tier song: Next To You. A very short, but very painful experience in flailing (and failing), because of the quick tempo, the insane combination of hits and the what seems to be never ending bass pedal hits. If you still, somehow, get past that, you still have Flirtin' With Distaster, Tom Sawyer, Won't Get Fooled Again, and, of course, Run to the Hills (all on the same tier). HAVE FUN!

* VideoGame/RockBand 2: '''Battery''' on Guitar and Bass, almost reasonable compared to
** '''Visions''' would like to see your drummer, bassist, and guitarist. Doing that song on Expert makes Panic Attack and Painkiller (other candidates for hardest song) look easy.
*** Made all the worse when you step down to Hard guitar or bass and realize it is just as bad, if not worse, because there are practically no hammer-ons in the Hard charts...
** Ace Of Spades '08 on Bass. I hope you like off-beat, asymmetric double strums, cause you're screwed if you can't master that.
** Panic Attack's bass track makes Painkiller look like a warm-up in comparison. The song opens with the bass playing essentially the exact same riff as the guitar, only without the benefit of any sort of lead-in or percussion to help you keep track of the 5/4 timing, and just keeps getting worse from there.
** Screw getting TO the fills in Everlong (on drums), the hard part is staying alive long enough for your bandmates to use overdrive to recover during the Run To The Hills-like hi-hat run that takes up about... 50% of the song. And it's on Red, [[FakeDifficulty which makes it count more towards your performance guage dropping like a rock]]
* Rock Band 3 has quite a few. Let's start listing the big ones:
** Full Band: Take your pick between [[https://www.youtube.com/watch?v=097rXEgE_cY Roundabout]] (5 on vocals, 6 on everything else) and [[https://www.youtube.com/watch?v=TzF5SqdONYk Llama]] ([[ThisIsGonnaSuck 6 on everything]])
** Drums: Llama again, and in more ways than one - 3-starring the song on Expert is a requirement for the Hall Of Fame Challenge set list (on Expert) to be completable. You also need a 250-note streak for another challenge. Expect to clear Guns of Summer before you get either of those two goals, even with judicious use of No-Fail.
** Bass: Roundabout again.
** Guitar: Freebird, for reasons similar to why it's so damn hard in ''Guitar Hero 2.''
** Keyboard: Roundabout yet again.
** Vocals: Jury's out on this one, though [[Music/TheBeachBoys Good Vibrations]] [[FakeDifficulty (LIVE)]] or [[Music/{{Queen}} Bohemian Rhapsody]] are generally considered the hardest (the third hardest listed, Llama, is actually extremely easy if you can [[BreatherBoss hum]])

* ''Rock Band 4:'' [[https://drive.google.com/file/d/0B4w4Gv0C5yPRejh2NGlSVkRNeXM/ The song difficulties are in!]]
** Band: "Dream Genie" by ''Lightning Bolt'' and "Metropolis, Pt. 1" by Music/DreamTheater are Devil-Tier on ALL instruments. The closest runner-up is "Rock and Roll, Hoochie Koo" by ''Rick Derringer,'' whose easiest instrument is a 5 on Drums.
** Guitar: "Hail to the King" by Music/AvengedSevenfold is a level-6; everything else is a 0.
** Drums: "I Am Electric" by ''Heaven's Basement.''
** Vocals: "What's Up?" by ''4 Non Blondes.'' is at level 6, while everything else is a simple 0.

* Let's also just note that there are two full Music/{{Megadeth}} albums as DLC. You could pick a song at random, and it will probably be bone crunchingly hard.
** Special mention has to be given to "Take No Prisoners" off of the Rust in Peace album. The intro has some weird hammer-ons and pull-offs on guitar, but Guitar Riff 2 throws all rhyme and reason out the window.
*** To add on to that, near the beginning of the song you're thrown a bunch of fast descending scales which lasts for eight measures. Even worse, if you're playing Rock Band 2, you won't be able to overdrive, as they only give you 1/4 a bar for it. Because of that, some people struggle to even pass the song. Rock Band 3 was a little more generous to us with that, putting a unison bonus in that spot so you can overdrive for half of it, but it's still unforgiving.
** By the way, remember breaking your fingers over "Hangar 18" from ''VideoGame/GuitarHero 2''? Guess what: ''[[http://www.youtube.com/watch?v=GVFuu5s390k it got harder]]''.
* Afterlife has some lightning fast guitar riffs at the start, but at least they're simple. Then it throws away all reason during the solo. It's not even rated at the highest difficulty, though it is still rated "nightmare" ("Challenging" in Rock Band 2 due to cutoff changes), which is a good description for the quickly advancing army of gems set out to destroy any guitarist foolish enough to challenge them.
* Good Mourning/Black Friday plays the same treachery as Battery, making you complacent in the first minute or so, then kicking the crap out of you...on ''ANY'' instrument.
* Painkiller, the last song in Endless Setlist II, is the hardest song on disc (As of Rock Band 2's release), but it's currently the second-hardest full-band song (Including all Pre-Rock Band 3 DLC to date) just behind Satch Boogie. Take everything that's hard about it from GHWT and add a smaller timing window. You have a decent chance of failure at the surf solo on Guitar Hero. You have an almost guaranteed chance of failure at the same section on Rock Band if the Guitarist is on expert.
** It should be noted that FakeDifficulty comes into play here, which is part of the reason the surf solo (Guitar Solo 2A and 2B) is so easy to fail at. If you tap above the fret the next note is on, it counts as a miss, which is to be expected. if you tap BELOW the fret the next note is on, it also counts as a miss. Believe it or not, it is actually easier to do [[ViolationOfCommonSense if you ignore the green fret altogether and just worry about the four high frets]].
* Soundgarden's Jesus Christ Pose. For the vocalist, good luck figuring out the pitches on your first or fifth attempt on Expert, especially if you don't sing falsetto. For the drummer... well, good luck and hope you can handle the same rhythm for about half the song. For the Guitarist... well, you get off relatively easy. for the Bassist, hope you have good stamina.
* Guns of Summer by Coheed and Cambria. May God have mercy on your guitarist and drummer's soul.
** Elaborating on this: Remember [[Music/DragonForce Through The Fire And Flames]] back on ''[[VideoGame/GuitarHero Guitar Hero III]]'' and how the difficulties roughly were on that for Lead Guitar? Remember failing out at 5 percent into the song on Expert going "What the [[ClusterFBomb Fuck?!?!?]]"? Remember when you first hit Visions? That's more or less what Drums are, only more so since you can 5-star it on Drums-Hard and only reach 8% on Drums-Expert. The Guitarist has it easy in comparison (with an easy-to-figure out hard-to-fc riff for the most part), but still needs to be good at sliding.
* Green Day: Rock Band isn't very hard, but one MAY qualify for this trope. We Are The Waiting/St. Jimmy. It starts of with We Are The Waiting, an easy song with a [[EarWorm damn catchy chorus]]. The only hard part in this song is after the first chorus, where it throws 3 button chords at you inbetween an easy riff. Then it stops and St. Jimmy begins. It is basically an alt. strumming discord with an incredibly fast beat.
** While we're on the subject of Green Day and in turn Green Day Rock Band, the DLC song East Jesus Nowhere deserves special mention. Why you ask? Well the song for the most part is quite easy on guitar, but then comes the bridge...oh dear lord. The bridge is comprised of rapid alt-strumming to the extreme up and down the fretboard that barely scrapes through the notes per second limit and is the only reason why very few people have fc'ed it. Have fun.
*** Also, while Green Day Rock Band is a cakewalk on guitar and bass, drums are a different story. The drum solos on offer in Emenius Sleepus and Burnout are insane, not to mention Chump's outro, and then comes Homecoming. The rolls in the middle last for a good minute or so and are very, very fast. These rolls are a key reason why no one has fc'ed the song in it's entirety yet. Have fun drummers.
*** [[https://www.youtube.com/watch?v=cS0m26eLJ7E ...Until January 24th, 2015, that is.]]
* Avenged Sevenfold track pack. One is a song that has the drummer from Dream Theater in it, one has a flailfest solo, and the one that made me fail out is one with a solo that makes Surfing With the Alien's intense Clusterfuck of notes look easy by throwing in about a minute's worth. Have fun.
* You want real action? [[http://www.youtube.com/watch?v=ErdH2T524gc We Are the Nightmare on Expert Drums]]. Watch and weep. I don't think I need to say anything else.
* While around 40% of the Rock Band Network tracks qualify, anything by Chaotrope will definitely push the limits of anyone who tries it. Oh, you full-combo'd Guns of Summer on Drums? You've Gold-Starred the entire Rock Band 3 on-disc setlist without ever touching the shredboard? Expect to fail out repeatedly. Especially on Baptized By Fire.
* With DLC, you also get hit with one of these in the absolute LAST place you'd expect, the Miley Cyrus DLC pack. A cakewalk for the most part as you'd anticipate, then you get to [[WakeUpCallBoss "Can't Be Tamed"]] on Expert guitar, and you're effortlessly gliding through until a little over the 2 minute mark, and then the game throws you a curveball in the form of a [[ThatOneAttack really nasty 40 second long zig-zag solo]] that one section can single-handedly cause you to fail the song. To add insult to injury, the song itself has no actual guitar, Harmonix charted that solo just for the game, and most players weren't expecting such a difficult solo section in a song that has no guitars.
* Another one on the DLC front, "Pulse of the Maggots" by Slipknot. The verses are relatively simple, and there are two fast strumming parts in the song that end with a sweep and repeat four times (not strum limit approaching, but still), but that's nothing compared to the two ''monstrous'' solos full of random strums and very fast sweeps. One of them is the very end of the song. It was released as DLC in September 2011 and still remains un-FC'd. In fact, it took a while before solo 1 was hit on its own, and the ending solo is arguably even worse.
** In a similar vein, ''Dragonforce's'' "Operation Ground and Pound". [[https://www.youtube.com/watch?v=tScgCauwRGw Probably the most freakishly overcharted song on guitar in all of Rock Band.]]
* A good example for full band would be Lynyrd Skynyrd's [[https://www.youtube.com/watch?v=OUccnZaZLMU Tuesday's Gone.]] Arguably the best example of [[FakeDifficulty lanes' difficulty,]] both on G/B/K and drums. And all in an eight minute long song. Joy.

[[folder:Other Game Series]]
* ''VideoGame/GuitarHero'''s less famous predecessors ''Frequency'' and ''Amplitude'' had several songs, usually near the end of the game, all composed by members of Harmonix's in-house music team, which become this. Furious finger-work and judicious use of the Auto-Blaster power-up are almost mandatory for survival.
** The Music/{{Blink 182}} song's rightmost drum track was mostly not all that hard, except for the occasional drum fills. Hitting the same shoulder button three or four times in a row in time to 16th notes at 193-odd BPM? Yeah, good luck with that... Even Spaztik, the BonusBoss, wasn't quite that sadistic.
* ''VideoGame/OsuTatakaeOuendan'' has two: "Koi No Dance Site," infamously tough on the Insane difficulty, and "Ready Steady Go," the last song, where hit markers are everywhere at the end. The American spiritual sequel, ''VideoGame/EliteBeatAgents'', is considered by most to be a touch easier... aside from the syncopated "off-beats" on "Canned Heat." Then you get to the final song, "Jumpin' Jack Flash," and its near-impossible final verse. Similarily, ''VideoGame/OsuTatakaeOuendan2'' has the final stage on Insane difficulty.
** On the highest difficulty, Jumpin' Jack Flash has a health bar that drains very fast, so not only are there a lot of notes to hit, but you have to hit them with good timing. It's possible to lose without breaking your combo, and conversely hard to pass without getting an A.
** Honestly? The ice-skater level on ''VideoGame/OsuTatakaeOuendan2'' is possibly the most difficult level on the hardest difficulty, if only because combos don't come up fast enough to keep you alive if you don't get PERFECT 300s for almost ''every'' beat combo. The bar drains ''ridiculously fast''.
** The VERY LAST PART of Countdown on Insane difficulty. Can you say "YOU WA SHOCK!!!"?
** And then there's virtually ''every single fan-made level'' in its PC counterpart, ''osu!'' Combine the less-precise mouse controls with maps made by people who routinely seem to forget that this isn't ''VideoGame/DanceDanceRevolution'', and [[SarcasmMode have fun]]!
* "Aurora no Kaze ni Notte" in ''Manga/MermaidMelodyPichiPichiPitch: Pichi Pichitto Live Start''. The song is one of the more difficult ones on its own, but what really drives you to insanity is that you can only play as Caren, whose singing voice is beyond HollywoodToneDeaf and genuinely [[DreadfulMusician terrible]]. Bound to distract anyone that doesn't play with the music off, which defeats the whole point of playing the game.
* Bathroom Rap in the first ''VideoGame/ParappaTheRapper'' game where you rap against all the masters to get ahead in line for the bathroom was pure evil.
** [[FakeDifficulty The game's painfully small timing window]] certainly doesn't make this any easier. Of course, on subsequent replays this can become a lot easier if you get a Cool rank right at the start and improvise your way through the whole level.
** The first time through the game ''Cheap Cheap the Cooking Chicken's RAP'' will feel a lot like That One Boss, due to it featuring syncopated rhythms more than any other song in the game. The only reason it doesn't qualify is because the aforementioned ''All Masters' RAP'' comes immediately after, putting it's difficulty to shame.
** Taste of Teriyaki from ''VideoGame/UmJammerLammy''. Complicated offbeat rhythms combined with the small timing window? Forget it.
* ''Daigasso! Band Brothers'' for DS has "Recording Ticket Gold", which randomly picks 3 songs from the main 38 tracks and a random instrument from each, and requires you to get total score of 297%. Yeah, you get a 3% margin of error on 3 random songs on the hardest mode. You can't pause either.
** In the Daigasso! Band Brothers games, pretty much anything on Pro (Master in DBBDX) Drums is essentially impossible.
** It's hard to pin a single song down as "That One Boss" in DBB / DBBDX, since most of it is user created content, but some songs like Necrofantasia, Battle on the Big Bridge, and [=FF=]7's Boss theme are commonly referred to as "Totally freaking impossible."
* ''[[VideoGame/TaikoDrumMaster Taiko no Tatsujin]]'' for DS. [=Go=]Go Kitchen (written in Katakana) WILL make you punch a hole in your DS.
** Correction: Aside from 1-4 star songs, ANY song on Oni mode in Taiko no Tatsujin will make you destroy your DS. Also, any song from the 2000 series.
* ''VideoGame/RhythmHeaven'':
** Remix 8 from ''Heaven''. Due to its fast pace, this song requires precise timing to succeed at, especially if you're aiming for a Superb rating. It doesn't help that it cycles through several different games in quick succession, and towards the end, it gets ''even faster''.
** Likewise, Remix 5 in its NoExportForYou predecessor, ''Rhythm Tengoku'' for the GBA. It's not QUITE as fast, but still goes at a speedy clip, requires precise timing to get right, and what makes it worse is that, like Remix 8 from ''VideoGame/RhythmHeaven'' / Tengoku Gold, it doubles as SugarWiki/AwesomeMusic.
** ''Rhythm Heaven Fever'' has its own Remix 8, which require to play with slow cues (Air Rally) or no cues (Exhibition Match) with SugarWiki/AwesomeMusic in the background.
** ''Megamix'' has the Machine Remix. The thing that elevates it to That One Boss status? The "Rhythm Tweezers" sections near the end, which require fast memory and reflexes.
* The final boss of ''[[VideoGame/BitTrip Bit.Trip Beat]]'' completely drops the rhythm aspect of the game and forces you to play a full game of pong against a computer player, complete with the old school physics that make the ball go absolutely haywire if hit the right way. If you perfected the incredibly difficult song up until this point... Getting a perfect score has just become a LuckBasedMission. Oh... And if you start winning, the computer paddle starts splitting into two... Then four...
** And again in Bit.Trip Core, the second boss is notoriously difficult. You have to play a game of Missile Command against falling beats, and starting in the second wave, the beats start erratically changing directions and faking you out. You die if you miss about ''four'' of them. (Thankfully, the rhythm aspect of the game is retained this time.)
* ''VideoGame/{{beatmania}} IIDX'' naturally has a bunch, especially given how the design philosophy of IIDX is basically "let's make this entry the hardest yet!"
** 5.1.1. [Another], particularly before the new Hyper chart was released. Okay, 5.1.1. [Normal] and [Hyper] (again, pre-redesigned Hyper), great beginner's charts. So the Another shouldn't be too bad, right? '''[[SurpriseDifficulty Wrong.]]''' Constant scratching combined with difficult scales turn 5.1.1. from a a simple newcomer-level song into [[http://www.youtube.com/watch?v=lQdGeOaS8JM complete hell]].
** The [=PS2=] release of DJ Troopers introduces the Black Another charts. If a song has one, then it's bound to be That One. Among the worst are [[http://www.youtube.com/watch?v=xZOiIjRZmmk Do It Do It,]] which has to be seen to be believed, [[https://www.youtube.com/watch?v=rSmL4Po29V4 ICARUS]] which has BPM changes that rival those of Mei (and even replaced it as the last kaiden song for the console entry of DJ TROOPERS) and especially [[https://www.youtube.com/watch?v=Y57snv0G0TI MENDES]], a monster of a chart that has more notes than any other single chart in IIDX.
** The series features [[KyuAndDanRanks Dan]] courses, designed to measure your abilities and give you a rank corresponding to your skill level. Several Dan courses are particularly notorious:
*** 5th Dan as of ''tricoro'' has ''snow storm'' [Hyper], a level 9 chart that has no right to be in a 5th Dan course, which is supposed to consist of level 8 songs and low-tier level 9 songs. It has 1173 notes when many level 10 songs of comparable length have as many or even slightly less notes, and the second half of the song features a very fast scale pattern followed by more waves of scales until the end.
*** 7th Dan simply prevents a lot of players from graduating from 6th Dan. Ever since the ''dan'' system was implemented in ''7th Style'', every single 7th Dan course ends in ''THE SAFARI'' [Hyper], which features fast "mashing" sections. It's so infamously hard that there are [[https://www.youtube.com/watch?v=XftEyQYW3no video tutorials]] on how to "cheat" the chart, and there are players who simply {{Ragequit}} 7th Dan and complete 8th Dan instead because they find it to be '''[[NonIndicativeDifficulty EASIER]]'''; players in Japan who do this are known as ''[[FanNickname Safari]] [[MemeticMutation nanmin]]'' (Safari Refugees).
** All these examples are single player. That's not saying Doubles players are let off easy; there's Mei (again), Almagest, Quasar (which has been the final Kaiden song since the course's creation), Quantum Teleportation and Quell -The Seventh Slave-. [[http://www.youtube.com/watch?v=LJ0-dJE3l2w Quell]] in particular is so hard that, as of August 2011, it has a clear rate of '''1%.'''
*** And then there's charts that clearly weren't designed with a single player in mind, such as Cheer Train [Another], which has the nerve to group turntable and key notes together ''on one side!''
** "CONTRACT" on SP '''[[http://textage.cc/score/13/contract.html?2N800 Normal]]''' is notorious for the final two measures of its chart, which is a horrendous DifficultySpike compared to the rest of the chart. It is a sudden surge of partial sixteenth-note scales at 180 BPM mixed with scratches, and has caused many players to fail an otherwise solid run. The chart would qualify as only a level-7 chart, but because of those two measures, it was initially rated an 8 and later a '''9''', the highest difficulty ever given to a Single Normal chart. It's a fine example of the FakeDifficulty caused by a combination of the Groove Gauge and sudden-difficulty endings.
*** "CONTRACT" on SP [[HarderThanHard †LEGGENDARIA]], shown [[http://textage.cc/score/13/contracl.html?2AC00 here]]. Let's throw double-scale patterns next to scratches, ''what could possibly go wrong?''
* ''VideoGame/{{DJMAX}} Technika'''s Popular Mode has some paricularly challenging songs on its 3rd stage. Sweet Shining Shooting Star is a somewhat easy song up until the chorus section, [[DifficultySpike at which point you're presented with a charlie foxtrot of notes]], while Blythe, Sin, and Son Of Sun get their difficulty from having double-speed wipes combined with lots of eighth notes, some of which are of the "chain" variety to make things worse.
** The Heartbeat Set's normal last stage, Colours of Sorrow TP. If you're only good enough to play the easiest songs in the set (typically Divine Service TP, Remember TP, and either Play the Future TP or Stop TP), [=CoS=] TP's difficulty will likely come off as a [[DifficultySpike shock]] to you. It doesn't help that the sections with repeat notes will be a source of many misses unless you hit the touchscreen in a rather specific way.
** And ditto for Customizer Set, which has ''Son of Sun'' TP as its normal last stage. If you're only good enough to clear ''Shoreline'' PP, ''Y'' TP, and ''Sweet Shining Shooting Star'' PP, [=SoS=] will give you a mental SOS.
*** Customizer's '>95% MAX' boss, SIN TP, is no slouch, either, with the main killer being the middle section that features repeat note/regular note combinations. For many, this is likely their first encounter of this type of note layout...and often times get killed.
** The normal boss for the Challenger Set is ''End of the Moonlight'' TP, which is regarded by ''everyone'' to be harder than the SP chart. Its biggest challenge and stumbling block for many players is the jackhammer sequence during the intro. The easiest way to handle this is by playing the notes together as chords rather than individually, which takes plenty of practice. Chances are that by the time you've coasted through the intro, your gauge is sufficiently depleted that the rest of the song will destroy you if you're not careful. This is the sole reason the SP and TP charts became HD and MX respectively during the transition to the second game.
** ''Enemy Storm'' SP (MX from the second game onwards) is absolutely evil. The jackhammers in this pattern are even more complex than the aforementioned End of the Moonlight. You can either power your way through them or [[GoodBadBugs glitch them like hell]], but playing them correctly will often leave you dead, or ''for'' dead. And good luck trying to finish this song in the Specialist set, where it appears as a ''regular'' boss; the harder-to-reach boss is Son of Sun SP, but that's its own separate kettle of fish.
** ''Technika 2'' has [[http://www.youtube.com/watch?v=A_QVFGjiWvg&feature=related D2 (Hard)]]. It would actually be ''easier'' than its [[http://www.youtube.com/watch?v=EaEHKCvP9ag&feature=related Normal]] chart, but there's one particularly harsh condition that makes it otherwise. The timeline in the Normal chart is scrolling at double speed, which for some makes the chart fast enough. On Hard? It scrolls at ''quadruple'' speed--it takes the timeline about a second to completely scroll to one direction and back. To make matters more difficult, the timing windows are much stricter than on any other chart. Many players find that even if they watch videos of the chart many times and think they can do the chart, it's when they try the chart for real that they realize that it is MUCH harder than it looks.
** And now that Crew Race, a mode where ''player-created'' crews can make their own courses with target scores to beat, you can BECOME That One Boss! Most of the crews like to put high-end songs with high scores and annoying modifiers. Failing that, there's crew courses consisting of easier songs...but many of ''those'' will require you to nail a [[FlawlessVictory Perfect Play]] of the entire course to win.
** With the recent release of "Maximum Set" on ''Technika 2'' only a few people had passed its boss songs, ''Cypher Gate'' MX and ''D2'' MX because it's just so HARD to clear, and Club Mixing's not-so-lenient Groove Meter doesn't help too. To elaborate:
*** Cypher Gate MX is a massive technical challenge that demands strong musical aptitude from the player. The off-beat heavy rhythm is hard to get down precisely and even harder to play due to the narrow window in playing the notes and the hardware-based limitations. It's telling when the more accomplished ''Technika'' players themselves say that a song and the set it's feature in are far and above the rest of the game.
*** D2 MX, or Dance of Death, is brutality incarnate. It retains the 356-BPM scroll speed madness from the HD chart and the density of the NM chart, combining them into what is regarded by many to be one of the most difficult songs in the series. Like with the HD chart, the fast scroll speed means that the judgment is at its tightest, and the note layout doesn't give you time to catch your breath.
** ''Technika 3'' features Black Swan, the first song in the series to be in a non-4/4 signature, AND to [[UncommonTime have multiple time signatures.]] [[https://www.youtube.com/watch?v=y21QO8Px5cs Here's]] a look at its Hard chart, and it isn't pretty.
** Thought that the likes of Thor, Airwave, and Landscape were insane with their pink-note waves? Meet Xeus (also from ''Technika 3''), the spiritual successor to Thor (by the same composer: Xeon). Its NM chart is tame, but its HD features the same myriad-of-notes segment from the three aforementioned songs. And the MX chart goes batshit with this by having not one, but TWO of these gauntlets. Good luck.
** The "Fatality" Club Mixing Set is the most difficult of its kind. It features nothing but MX charts (half of which are among the hardest) and contain the following songs: Rain Maker, Chemical Slave, Showdown, Victim of Love, [=AD=]2222 and Angel. The low and high bosses are Supernova and the aforementioned Xeus, respectively. And taken into consideration the formula that ''Technika'' follows to calculate what boss you get, you need to play the two most difficult songs in the set just to play the Xeus.
* Any song with an "Insane" level in the ''VideoGame/{{Mungyodance}}'' series. The Destination series, Reasons To Live, Origin, and Chaos Theory come to mind.
** Gabba Bond (4Skips vs. Big Kiss Remix) on Insane, due to the heavy amount of mines in the chart. And after hitting one, avoiding any more becomes a sadistic endeavor due to the added mods.
** The Seven Gates. The steps aren't too hard compared to the likes of the above songs, but it's still ''very'' draining, mainly for the fact that it's almost '''11 minutes long.'''
* While [[EvilKnockoff Evila]] is the most-cited ThatOneBoss in ''VideoGame/SpaceChannel5'', Giant Evila and Purge the King usually aren't far behind. You need to do the opposite of what they say before shooting, or else you'll hit your allies. Giant Evila sends out a ''lot'' of shoot commands, which gets confusing, and while Purge the King has a much shorter segment, he only gives you three chances to fail.
* "Bounce (FSG Remix)" in ''VideoGame/DJHero''. A low amount of checkpoints, one of the faster songs in the game, and good luck clearing it in Empire mode, because the AI almost never misses a beat. You have to be ''completely'' precise in your hits; so much as one screw-up could through the whole mix away for you.
** Most mixes by the Scratch Perverts will be difficult at the very least. Especially [[https://www.youtube.com/watch?v=lshBvDAksyI "Galvanize (Beat Juggle)"]] (has more notes than any other song), "[[https://www.youtube.com/watch?v=1PMbGB7XqaQ Groundhog (Beat Juggle)]]" (widely considered the hardest song in either game), and worst of all, [[https://www.youtube.com/watch?_vid=1PMbGB7XqaQ&v=HC0gVK-MPBs "Beats and Pieces"]] (which even the bot can't FC on the UsefulNotes/PlayStation3).
* ''VideoGame/PumpItUP'', simply by virtue of its RefugeInAudacity policy towards difficulty, is absolutely full of these.
** From NX: Chimera, Final Audition episodes 2-1 and 2-2, Gun Rock on Nightmare, and the infamously difficult Boss Remixes that still stand as the most difficult ones even on Fiesta 2: Wi-Ex-Doc-Va and Bemera, the latter being the ThatOneBoss of the entire series.
** Fiesta made it even worse. On a Hell Zone from Quest World, there's a mission consisting of bemera on Double... with its chart being directly the Nightmare charts from both Bee and Chimera, and isn't Chimera Nightmare alone good enough to kill anyone? Hi.
** Any chart released with the 1.30 patch for Pump It Up Fiesta EX. For example; [[http://www.youtube.com/watch?v=kBZ0YpKNrYg Cleaner]], [[http://www.youtube.com/watch?v=FoeWw0Tzkuo Gargoyle]], [[http://www.youtube.com/watch?v=5BIQyQoxuds What Happened]], and [[http://www.youtube.com/watch?v=99ogXIPG75s Superman]].
** Fiesta 2 update 1.40 brought Windmill; its high BPM limits the strict multiplier-based speed mod options, introducing a novel complication to even practicing its brutal 16th streams (~984 steps/minute). It also brought us Log-In [[https://youtu.be/xFtFFG_beK4?t=17 S21]]; short bursts of 32nds in a 16th stream. By the time you get to the 18+ range, [[DamnYouMuscleMemory straight 16th rhythm is hard instinct.]]
** Some charts are not difficult in a technique or trick sense, but just physically demanding. If you haven't been playing or otherwise training your stamina for a while and think you're still up to the task of Solitary 2 S17 or Bee S19 Another, it's probably time to [[IncrediblyLamePun Puke it UP!]]
* ''VideoGame/InTheGroove 2'' has Bloodrush, which on hard is a 9. Not quite so hard to ''pass'', but a long string of crossover 16ths at during the slow section and more crossovers at full speed later in the song guarantee that unless you've really practiced, you won't get a good score, even if you've done well on 10s and 11s.
** Determinator Expert. 24th-note triplets at ~170BPM for a solid 5 seconds. That's 17 arrows a second! (Max 300 is 10, Pandemonium is a bit over 11). The song is rated a 12, but if That One Run was extended to the entire song, it would be more like a 15. (For reference, official ITG songs only go up to 13.)
* ''VideoGame/MusicTimes'' has "[[Music/{{Vocaloid}} Hatsune Miku no Shoushitsu]] [NM]", a Level 9 with patterns not normally seen in most 10s. Done in 8ths. At 240BPM.
** For other examples, try "[[Disney/{{Frozen}} Let It Go]]", a level 8 with needless jackhammer hits everywhere, and "Secret", with its signature (hated) 16th chord-sweep pattern.
** 10+s are definitely designed to be hard, but "[[VideoGame/DJMax Oblivion (Rockin' Night Style)]] [HD]" is just taking the piss. Seemingly random double-note 8th runs and jackhammer chords contribute to a complete mess of a chart. That's saying nothing of "[[RunningGag Through the Fire and Flames]]"...
* ''Kitasaitama 2000'', ''Garakuta Doll Play'' and ''Caliburne ~ Story of The Legendary Sword'' from ''VideoGame/{{Maimai}}''. All of those feature insanely fast notes that require very fast reflexes and movement speed in expert difficulty that normally only appears on music in the unlockable master difficulty.
* ''Videogame/{{Deemo}}'' has "Magnolia" and its sequel, "Myosotis", both of which, on their hardest difficulties, combine lightning-fast piano sections with dubstep sections that have you sliding your fingers all over the place like a madman. It's telling that, in a game where the highest difficulty rating is typically 10, the latter is rated ''[[UpToEleven 11]]''.
* ''Band Hero'', the poppy spinoff of ''VideoGame/GuitarHero'', brings us "You Better Pray" by Music/TheRedJumpsuitApparatus on Guitar. The song begins with [[https://www.youtube.com/watch?v=vCT-zjDhs1w a rapidfire of hammerons and pulloffs]]. To date, [[http://www.scorehero.com/rankings.php?group=15&game=43&diff=4&platform=6&size=1&inst=1&inst1=1&inst2=&inst3=&inst4=&song=711 only two people]] have gotten 100% on expert.
* VideoGame/GuitarHero itself has several example but a few take the cake (outside some of the BonusBoss songs).
** The FinalBoss of Guitar Hero 3, [[LouisCypher Lou]], [[https://www.youtube.com/watch?v=XlADvYRfhpU is easily the hardest of the already difficult guitar battles]]. It's a really difficult song even in battle form and has a long intro/verse with ''very fast'' strumming during the first verse (it takes a while to even get the first attack). Lou gets his attack first and has great AI. Even after you beat Lou, you may still fail the outro which is just barely easier than the rest of this insane song. [[https://www.youtube.com/watch?v=lJLHyzTSLp0 The DLC version]] [[NintendoHard has you playing both parts]] and is sometimes considered ''worse'' than "[[DragonForce Through the Fire]] [[BrutalBonusLevel and Flames]]".
** "TTFAF" itself has always been infamous for its difficulty level, with rapidfire strumming and hammerons/pulloffs throughout the whole song. It's actually easy to fail before the vocals start.
** Done on purpose with "[[https://www.youtube.com/watch?v=IYzSfIaweK4 Sudden Death]]" (on guitar at least), the FinalBoss of Guitar Hero: Warriors of Rock. It's a Music/{{Megadeth}} song (those are usually difficult anyway) written with difficulty in mind. The song is littered with very difficult solos and fast strumming. To clear it the first time, you have to get a great score or else repeat the whole song.
* ''VideoGame/GrooveCoaster'':
** [[https://www.youtube.com/watch?v=iMSwmMVCikw "Marry me, Nightmare" on Hard]]. Rated a 10 out of 10 and even then it's just brutal by level 10 standards. {{Camera Screw}}s everywhere, a series of {{Jump Scare}}s in one section of the song where the game zaps your avatar to the opposite lane, and a [[UncommonTime nonstandard time signature]] that can make it hard to keep the beat. The smartphone versions of the game, which have a difficulty scale that goes 1-20 with many arcade 10's being rated 15 and above, puts this chart at a 20, just to reinforce how challenging it is.
** The aptly-named [[https://www.youtube.com/watch?v=x8vmG08gNps "Good Night, Bad Luck"]], which makes its predecessor "Marry me, Nightmare" look like a toddler's toy. This song's gimmick is "trick you into thinking you'll have to hit three or four Slide notes at once and then split them into single and dual Slides ''immediately'' before you have to hit them." Beyond that, one section features 1/16th-note streams of Critical (i.e. dual Tap) notes (and since this is an arcade exclusive, this means furiously mashing the buttons in sync with both arms) and the last 1/3 of the song is a nonstop barrage of 1/8-note Tap and Slide notes coming at you, all at 285 BPM. Don't injure your hands!
** Do you want to destroy your arms? Look no further than [[https://youtu.be/XZRnUUcrS0U "ouroboros -twin stroke of the end-"]], which features lightning-fast 1/16th-note Tap rolls at 188 BPM throughout the chart! Even by level 10 standards, it's regarded by many players as one of the hardest charts in the entire series.