!!YMMV in ''VideoGame/{{Fraxy}}'':

* GameBreaker:
** The "Quicker" ship type, while designed for speed, ends up just being more powerful than anything else.
** Using splash damage to bypass the barriers on a SequentialBoss and attack the core directly.
** Fun Mode counted as this on early versions of the game. It had a boost speed equivalent to that of the Quicker's, along with a passive oversoll that lasted forever.
* GoodBadBugs:
** One bug allows for the creation of a 100% invisible boss, with no hittable parts.
** Not that you couldn't do this intentionally.
* SurpriseDifficulty: Almost all of the default bosses are rather easy. Almost all of the player-made bosses that one can download are quite hard.


!!YMMV in the [[FanFic Fan Fics]]:

* DesignatedHero: Mara. No matter who created him or why, no matter the intentions, Mara has the simple mission of [[spoiler: killing Sakra-Devanam and her spawn for attempted (and possibly accomplished) genocide of humanity.]] If he needs to [[spoiler: devastate an alien fleet for making the simple mistake of experimenting with Sakra-Devanam's [[FreudWasRight oddly shaped]] [[DeusExMachina resurrection leeches]]]], so be it.
* FreudWasRight: Phallic Avenger!
** Comet Drone Cluster, if you fought [[Franchise/TouhouProject Koishi Komeiji]].
** Also [[https://www.youtube.com/watch?feature=player_detailpage&v=q06Nb6VAX24#t=20 the "cutscene" the player is treated to]] before fighting Birth, one of Eboshidori's creations.
** The first half of Omoresu's [[https://www.youtube.com/watch?v=Mj4zxEsKGR0 Angelo Acala]] has a weak spot and attack that both come from [[GroinAttack a peculiar place]]. Naturally, people noticed.
* SugarWiki/MomentOfAwesome: ''[[https://www.youtube.com/watch?v=pPW6E_-b4MA#t=3m27s Arc. Legion.]]'' The finale to the ][nfector storyline, it is a fight against a being so powerful that [[spoiler:Reactor 00, which had the strength to wipe the galaxy clean of an invading army, could only hold it in check]], in AnotherDimension, set to [[SugarWiki/AwesomeMusic epic rock music]][[note]][[https://www.youtube.com/watch?v=rBETIUlgZdY Dark Chest of Wonders]] by Nightwish[[/note]].
-->'''Arc Legion''': "You still cannot give in to the inevitable? Then ''let the heavens fall!''"
* NightmareFuel: [=TekTo=] and Eboshidori had a battle to create such bosses, the results, Zapan D and Scylla, were ''very'' successful.
** To clarify, Zapan D is a giant mechanical skull that uses a shield made of big cores to attack. [[spoiler:In its second form, it becomes even larger and uses assorted {{BreathWeapon}}s and {{Eye Beam}}s to BeamSpam proportions.]] Scylla, The Infected Titan is a boss that has several forms, ending in a gentleman EldritchAbomination. [[SugarWiki/FunnyMoments It also uses Awesome Faces to do its dirty work in the first two forms.]]
** Eboshidori's storyline: shortly after Mara's fight with the Phantom 30k, he destroys it ''while the pilot is calling for backup.'' ''SET TO CREEPY MUSIC.'' [[spoiler: It's implied that the P30k and all related ships were created by Sakra-Devanam, and are not human, but still....]]
* ThatOneAttack: Many bosses have some really painful attacks. Notable attacks include:
** Eboshidori's SBS 1300K, with the Archer Beam. If you can't hide in the nooks in its wings, you die.
** @/{{Oneshiningstar}}'s Star - Pincer Core. 3 easy attacks, followed by [[Franchise/TouhouProject Vajra of]] [[ThatOneBoss Perfect Buddhism]]. Enjoy dying!
* [[ThatOneBoss "That One Boss" Makers]]: Several, including:
** Eboshidori, who's something of a MemeticBadass in the Fraxy community for making difficult (or just interesting) bosses (in the grand scheme of things, that aren't all that hard).
** @/ZarroTsu, a boss maker who focuses on making [[BulletHell danmaku]] bosses, [[NoHoldsBarredBeatdown most of whom will cause massive damage to your lives.]]
** Oomagatuhi, a Japanese boss maker who also focuses on danmaku bosses, [[NintendoHard except these would give even the most difficult of shooters a run for their money.]]
** Henny5555, who used to make bosses ''[[HopelessBossFight that are impossible to beat without the Quicker ship type!]]''
** And of course, everyone else who can make a decent boss is less then one step away from such a title!
* WhatDoYouMeanItsNotSymbolic: Several bosses are re-imaginings of deities from several religions (Eboshidori's guardian series is built around this, with every Buddhist Deity except for the Buddha himself showing up and the protagonist being ''the Buddhist devil'' ), one sticks the player on a crucifix, and one ''crucifies himself'' to achieve his final form.
** [[spoiler: Actually you get to face [[https://www.youtube.com/watch?v=GTeZrno8DNc Buddha]] too]].