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

* FreudWasRight: Phallic Avenger!
** Comet Drone Cluster, if you fought [[VideoGame/{{Touhou}} Koishi Komeiji]].
** Also the "cutscene" the player is treated to before fighting Birth, one of Eboshidori's creations.
*** Recently, a Fraxian called Omoresu created a boss with a weak spot and attack that both came from a....[[GroinAttack peculiar place]]. Naturally, people started to notice.
* GameBreaker: [[strike:Fun mode]] The "Quicker" ship type. Enough said.
** Using splash damage to bypass the barriers on a SequentialBoss and attack the core directly.
* GoodBadBugs: One bug allows for the creation of a 100% invisible boss, with no hittable parts.
* 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 it's 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. [[CrowningMomentOfFunny It also uses Awesome Faces to do it's dirty work in the first two forms.]]
* SurpriseDifficulty: A typical new player pits himself against the premade bosses, gaining confidence. Then he goes to the Fraxy redux, downloads a few bosses and realises the error of his ways.
* ThatOneAttack: Every boss has some really painful attacks. Those notable for such attacks include:
** Eboshidori's SBS 1300K, with the Archer Beam. If you can't hide in the nooks in its wings, you die.
*** What? The Archer beam is awesome.
** @/{{Oneshiningstar}}'s Star - Pincer Core. 3 easy attacks, followed by [[VideoGame/{{Touhou}} Vajra of]] [[ThatOneBoss Perfect Buddhism]]. Enjoy dying!
*** Though fortunately, if you're playing without limited movement, THAT attack becoems far easier.
* [[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 focusses 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!]]''
** Among the generic bosses, Clock Trap is a order of difficulty much higher than its compatriots.
** 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 [[http://www.youtube.com/watch?v=GTeZrno8DNc Buddha]] too]].

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

* [[CrowningMomentOfAwesome Crowning Battle of Awesome]]: ''[[http://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 [[CrowningMusicOfAwesome epic rock music]].
-->'''Arc Legion''': "You still cannot give in to the inevitable? Then ''let the heavens fall!''"
* 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 experementing with Sakra-devanam's [[FreudWasRight oddly shaped]] [[DeusExMachina ressurection leeches]]]], so be it.
* NightmareFuel: 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....]]