History ThatOneBoss / DanceDanceRevolution

* ''鳳 (Hou)'' dropped on November 1st, 2023, as the ENCORE EXTRA STAGE of ''BABY-LON'S GALAXY'', and by the end of the month no player had yet cleared it. Not only does it require the unlock and clear of three tough CHALLENGE charts in ''Come To m1dy'', ''SISYPHUS'', and ''New Millennium'', a 17 and two 18s respectively, but it comes with two new gimmicks. The first is a dynamic fade-in on the arrows, like a tempo-dependent SUDDEN+; arguably this makes the song itself slightly easier, but that's not the killer. The second is a new kind of gauge: FLARE GAUGE EX. It acts similarly to the pre-''[=SuperNOVA2=]'' EXTRA STAGE gauge, with one key difference: '''[=PERFECTs=] also drain the gauge.''' [[OhCrap Even a PFC might not be enough to clear this one.]]

* ''鳳 (Hou)'' dropped on November 1st, 2023, as the ENCORE EXTRA STAGE of ''BABY-LON'S GALAXY'', and by the end of the month no player had yet cleared it. Not only does it require the unlock and clear of three tough CHALLENGE charts in ''Come To m1dy'', ''SISYPHUS'', and ''New Millennium'', a 17 and two 18s respectively, but it comes with two new gimmicks. The first is a dynamic fade-in on the arrows, like a tempo-dependent SUDDEN+; arguably this makes the song itself slightly easier, but that's not the killer. The second is a new kind of gauge: FLARE GAUGE EX. It acts similarly to the pre-''SuperNOVA2'' EXTRA STAGE gauge, with one key difference: '''PERFECTs also drain the gauge.''' [[OhCrap Even a PFC might not be enough to clear this one.]]

* The introduction of level 9 MANIAC charts, appropriately labeled ''CATASTROPHIC''. While they're certainly not as difficult as the highest-end charts today (In fact, they're only a 13 on the X-Scale), they still prove to be both quite difficult and fun even today. This mix is the first one that had songs that really drained stamina, even when done correctly.

* "CAPTAIN JACK (GRANDALE REMIX)" stood out because it's the only licensed chart to be on equal [[JustForPun footing]] as Konami Originals in terms of difficulty, which came off as a [[SurpriseDifficulty shocker]] in the earlier days of the franchise. While most licensed songs could only hope to reach such levels of difficulty, CAPTAIN JACK is one of the few songs that pushes players with quick 16th triplets, 8th note jumps, and gallops. It also doesn't help that parts of the song used wrong notes, particularly the green arrows in the gallops as well as the end's 1/32nd or 1/64th random gallop.

* If you can get an AA on "MAX 300" on Extra Stage, say hello to One More Extra Stage (OMES for short) with the song "Candy," which forces you to full combo and not miss freezes or fail.

* [[VideoGame/{{Undertale}} Do you wanna have a bad time?]] Then look no further than "MEGALOVANIA", added in the May 19, 2022 update. Yes, the [[spoiler:Sans boss fight]] theme from ''Undertale''. Rated an 18 on both Single and Double play and with Shock Arrows all over the place, with the Double Challenge chart in particular having the most Shock Arrows of ''any chart in the series'' and the [[https://pbs.twimg.com/media/FTr9UkOaIAAfWIT?format=jpg&name=small largest groove radar in the game that broke the scale]]. Don't think that you're safe from Shock Arrows on the lower difficulties, because they are present on Difficult and Expert difficulties as well, a first for the series! Oh, and before it was patched on May 31, 2022, there was a part where 3 arrows were present in 1 line (1 hold but 2-arrow jump), reminding you of Uh La La La. [[SurpriseDifficulty And you thought]] only Konami originals and ''VideoGame/TouhouProject'' remixes were eligible for boss charts...

* ''BREAKING THE FUTURE'', the main theme of the ''BEMANI PRO LEAGUE -SEASON 2-'' event from ''[=DanceDanceRevolution GRAND PRIX=]'' was released on A3. But, if the players bought ''all'' nine BPL Season 2 Music Packs and purchased a ''GRAND PRIX'' active suscription, they will be ''rewarded'' with its Challenge charts. And those are the first 19 (both Single and Double charts) not related to an unlock event or Extra Stage, and it shows! It has 924 steps on Single and 867 on Double, and those are loaded with triplets (yeah, seems that triplets are staying now), stepjumps ''during'' sudden BPM changes and after a series of sudden stops, a speedup to 720 BPM in the ending that ends early so to throw up any player who has still survived this onslaught. Ah, and it broke both Challenga charts of ''CHAOS'' as the most [[DepartmentOfRedundancyDepartment chaotic]] value ever with 211 and 218, surpassing the original of 200!

* ''BREAKING THE FUTURE'', the main theme of the ''BEMANI PRO LEAGUE -SEASON 2-'' event from''[=DanceDanceRevolution GRAND PRIX=]'' was released on A3. But, if the players bought ''all'' nine BPL Season 2 Music Packs and purchased a ''GRAND PRIX'' active suscription, they will be ''rewarded'' with its Challenge charts. And those are the first 19 (both Single and Double charts) not related to an unlock event or Extra Stage, and it shows! It has 924 steps on Single and 867 on Double, and those are loaded with triplets (yeah, seems that triplets are staying now), stepjumps ''during'' sudden BPM changes and after a series of sudden stops, a speedup to 720 BPM in the ending that ends early so to throw up any player who has still survived this onslaught. Ah, and it broke CHAOS' Challenge charts as the most [[DepartmentOfRedundancyDepartment chaotic]] value ever with 211 and 218, surpassing the original of 200!

* On February 2, 2023, the EXTRA SAVIOR system added a new Challenge chart for the IIDX crossover ''BITTER CHOCOLATE STRIKER''. If you thought that ''Lindwurm'' was the only new Challenge chart with pure stepjumps...''you're not prepared for this'': [[BreadEggsBreadedEggs triplets, step-jumps, step-jump triplets]], some 24th twists at the most awkward time, and an ending with combines all of the above! Some question if the chart (both Single and Double) is indeed a 17.

* The boss of the Bemani Gakuen event is "[[https://www.youtube.com/watch?feature=player_embedded&v=iCIlGfiu6gM Elemental Creation]]"; while it's about as hard as the average boss song, it is also longer than most normal DDR songs. Of course, more length equals more steps; its Difficult chart is an 11 with a max combo of over 600 ([[BlatantLies Yeah, that's pretty easy]]), the Expert is a 17 with a max combo of ''789'', and the Challenge, while not ''the'' hardest song (It's yet another 18), has '''''860'''''. Its highest-leveled IIDX, ''VideoGame/ReflecBeat'', and ''VideoGame/{{Jubeat}}'' charts break similar note count records. And did we mention its 212--sorry, [[FakeDifficulty 424 BPM with tempo changes]]?

* On February 2, 2023, the EXTRA SAVIOR system added a new Challenge chart for the IIDX crossover ''BITTER CHOCOLATE STRIKER''. If you thought that ''Lindwurm'' was the only new Challenge chart with pure stepjumps...''you're not prepared for this'': [[BreadEggsBreadedEggs triplets, step-jumps, step-jump triplets]], some 24th twists at the most awkward time, and an ending with combines all of the above! Correct me if I'm wrong, but this chart (both Single and Double) is ''not'' a 17.

* Continuing the trend of Challenge charts that are 18 but don't feel like a 18, from VideoGame/{{Jubeat}} we have 量子の海のリントヴルム (Ryoushi no umi no Lindwurm). Only available to those who purchased the two Jubeat packs on ''[=DanceDanceRevolution GRAND PRIX=]'' with an active subscription will unlock it on ''A3'' (purchasing the second pack will get you the song, both packs will give you the Challenge chart). This chart looks like the unholy child of both Unreal and NGO, with ''many'' stepjumps through the song and almost as many notes as the former's Expert and the latter's Challenge ''combined!'' And with random 24th streams designed to make you throw up! Yeah...maybe you should think twice before purchasing those packs.

* On February 2, 2023, the EXTRA SAVIOR system added a new Challenge chart for the IIDX crossover ''BITTER CHOCOLATE STRIKER''. If you thought that ''Lindwurm'' was the only Challenge chart with pure stepjumps...''you're not prepared for this'': [[BreadEggsBreadedEggs triplets, step-jumps, step-jump triplets]], some 24th twists at the most awkward time, and an ending with combines all of the above! Correct me if I'm wrong, but this chart (both Single and Double) is ''not'' a 17.

* And now, we have "[[https://www.youtube.com/watch?v=qHG1oBEvlrY&feature=related PARANOiA Revolution]]", which premiered as a BonusBoss for 2nd Mix Mode; despite (almost) conforming to the limitations of the early era of DDR (i.e. no freeze arrows, but still a stop; stops only started appearing on 5th Mix), it does not conform to the difficulty of the era ''at all.'' Add [[DefaultSettingSyndrome forced 1x]] ([[ObviousRulePatch no speed mods until DDRMAX]]) and [[FakeDifficulty Flat]] ([[ColourCodedForYourConvenience the arrows only became colored by beat position on the very next version]]), and you've probably got the most ridiculous bosses in recent DDR histories.