History YMMV / Osu

* OlderThanTheyThink: Many popular songs actually appeared in other rhythm games first, notably "FREEDOM DiVE" which first debuted as a song for the ''VideoGame/{{beatmania}} IIDX'' simulator ''Lunatic Rave 2''.

* BrokenBase: Whether osu! is a Japanese or Western game, mostly: demonstrated brilliantly by [[http://osu.ppy.sh/s/10559 I Can Be Your Friend]]

** More than a few players would like the option to toggle hitsounds and/or backgrounds unconditionally, a feature peppy is unwilling to implement (as mentioned above).
** Playing with a mouse is this for some players, particularly those who can't afford a tablet or a touchscreen, due to the worrying potential to get carpal tunnel syndrome.

** Storyboard toggles, skin toggles, and black backgrounds are argued as either necessary for competitive players, or ruining the creativity within osu!. Peppy, the creator, has claimed he will never add a full toggle on any creative elements without having some sort of condition, which of right now is having to play the map at least once with everything toggled on.

*** Part of the reason for this is that the beatmap in question is one of the first ever made, and contains many elements that border on [[FakeDifficulty Fake Difficulty]], such as smaller circle size, low Approach Rate, inconsistent spacing, and a rather high slider velocity. None of these elements would be found in a so-called "Normal" difficulty today.

* FakeDifficulty: Is HEAVILY discouraged nowadays, and maps with it have a very low chance of being ranked. Using tricks like tiny circles, low (or high) Approach Rate, high HP drain, etc., are no longer acceptable in the Ranked Beatmaps section.
** There was a time when maps could be [[https://osu.ppy.sh/s/132 impossible to S-rank,]] [[UnwinnableByDesign even by Auto.]]
** Or have FAKE SPINNERS in the [[https://osu.ppy.sh/s/3959 storyboard.]]

** Don't you dare farm AR8 maps with DoubleTime, it proves you have no skill.

** [[http://tvtropes.org/pmwiki/pmwiki.php/WesternAnimation/TheSimpsons Once you're here,]] [[https://i.imgur.com/zc4fvqF.png you're here forever.]]

**** It is also required to pass this map in order to get an achievement for completing every song in the "Video Game Pack No.1" map pack. Since this is the only song in the pack with one difficulty, and passing it is not easy for Novice players, quite a bit of wrath is generated in the process of trying to beat it.

** There was a time when maps could be [[https://osu.ppy.sh/s/132 impossible to S-rank,]][[UnwinnableByDesign even by Auto.]]

*** Part of the reason for this is that the beatmap in question is one of the first ever made, and contains many elements that border on [[FakeDifficulty Fake Difficulty]], such as smaller circle size, low Approach Rate, inconsistent spacing, and a rather high slider velocity. None of these elements would be found in a so-called "Normal" difficulty today.

** Playing with a mouse is this for some players, particularly those who can't afford a tablet or a touchscreen, due to the worrying potential to get carpal tunnel syndrome.

** Modifiers multiply your score. One of these modifiers multiplies the speed of the song by 1.5x to give a score multiplier of 1.12x. So to get a top-ranking score, you ''have'' to use it, which not only [[FakeDifficulty artificially inflates the difficulty of the beatmap]], but also will probably make the song sound terrible.

** Modifiers multiply your score. One of these modifiers multiply the speed of the song by 1.5x to give a score multiplier of 1.12x. So to get a top-ranking score, you ''have'' to use it, which not only [[FakeDifficulty artificially inflates the difficulty of the beatmap]], but also will probably make the song sound terrible.

** Modifiers multiply your score. One of these modifiers doubles the speed of the song. So to get a top-ranking score, you ''have'' to use it, which not only [[FakeDifficulty artificially inflates the difficulty of the beatmap]], but also will probably make the song sound terrible.

* ScrappyMechanic: ''osu!'' is meant to simulate ''Ouendan'' and EBA. Unfortunately, this includes whatever Scrappy Mechanics the source games have, including spinners (which beatmap creators seem to be obsessed with, especially when making harder maps) and the very, VERY combo-based scoring system.

** More than a few players would like the option to toggle hitsounds and/or backgrounds unconditionally, a feature peppy is unwilling to implement (as mentioned above).

** Modifiers multiply your score. One of these modifiers doubles the speed of the song. So to get a top-ranking score, you ''have'' to use it, which not only [[FakeDifficulty artificially inflates the difficulty of the beatmap]], but also will probably make the song sound terrible.

** Now maps that abuse spinners are considered unrankable (it doesn't stop some maps occasionally being ranked when they have overly long spinners). Also, now there is the pp system, that balances scores between maps with a wide variety of max combos (but also makes plays that aren't Full Combos almost always worthless).

* ScrappyMechanic: ''osu!'' is meant to simulate ''Ouendan'' and EBA. Unfortunately, this includes whatever Scrappy Mechanics the source games have, including spinners (which beatmap creators seem to be obsessed with, especially when making harder maps) and the very, VERY combo-based scoring system.

* ScrappyMechanic: ''osu!'' is meant to simulate ''Ouendan'' and EBA. Unfortunately, this includes whatever Scrappy Mechanics the source games have, including spinners (which beatmap creatorrs seem to be obsessed with, especially when making harder maps) and the very, VERY combo-based scoring system.

** Storyboard toggles, skin toggles, and black backgrounds are argued as either necessary for competitive players, or ruining the creativity within osu!. Peppy, the creator, has claimed he will never add a full toggle on any creative elements without having some sort of condition, which of right now is having to play the map at least once with everything toggled on.

** From what can be seen, the main discussion is whether or not the overabundance of AnimeThemeSong beatmaps is a bad thing.