* SugarWiki/AwesomeMusic: Arguably the entire soundtrack, but particular standouts include [[http://www.youtube.com/watch?v=-BeJ3ZXZN9M "A Dedication to...Everyone"]], the main {{Leitmotif}} of the game and the two vocal themes by Aoi Teshima.
** "[[http://www.youtube.com/watch?v=4UuAp6LUKaY Something Called Trust]]" and "[[http://www.youtube.com/watch?v=Uj7bZ1CoNz8 Letter]]" feature that lethal mix of being incredibly beautiful and profound {{Tearjerker}}s.
** Also, there's a Crowning ABSENCE of Music: for the most part, the game's silent, using music only in TearJerker cutscenes and when enemies are present, making the already beautiful tracks even more effective. [[SilenceIsGolden The silence truly reinforces the feeling of being completely alone]].
** Among other standout tracks include the FinalBoss [[http://www.youtube.com/watch?v=MWeXfiU-rrY theme]], a haunting, sober tune that gets bonus points for being an awesome example of SoundtrackDissonance. The [[http://www.youtube.com/watch?v=VhE8u8c28SA other]] [[http://www.youtube.com/watch?v=RzWS2Dgnmv8 two]] boss themes may also qualify.
* EpilepticTrees: It's never explained how Seto and Ren are [[spoiler:immune to the effects of the Class Cage]]. Also, who was the voice speaking at the end before [[spoiler:Shin and Sai faded away]]? And what exactly is that [[RecurringBoss recurring mask creature]]?
** Note most of this was answered in an [[http://www.gamefaqs.com/boards/944059-fragile-dreams-farewell-ruins-of-the-moon/61880751 interview]] with the developer back in 2009 two months after the Japanese launch.
* FridgeBrilliance: You know how cats are a big thing in the game? Well, cats are known to be rather empathetic, if you earn their trust. They can understand your feelings without having you talk to them - they just know. [[spoiler:It reflects the Glass Cage's purpose: to understand others without words]]!
* FridgeLogic: How is it remotely possible to transition from nighttime in the amusement park to mid-day instantly when heading to the hotel?
** WHY THE HELL CAN WE NOT REPLACE [[spoiler:PF and Crow's]] BATTERIES?
*** Considering [[spoiler:they're machines, they probably don't run on simple dry cells. Seto probably doesn't have the time or knowledge to search for specific batteries. Besides, batteries have a shelf life and they may have long run out]]. Unfortunately, that brings up another piece of FridgeLogic: why doesn't Seto need batteries for his flashlight? Where would he even find them?
*** Energizers. They keep going and going...
*** Seto has never been outside the observatory where the old man raised him, so he probably doesn't understand [[spoiler:what a robot is, and that they would be fine if their batteries were replaced]]. He did ask PF what he should do, and it never answered him as if it were impossible.
* GoddamnedBats: Not actual bats, but crows and ''ghost owls''; some non-avian enemies also qualify. May double as DemonicSpiders, depending on the player.
* HoYay: Seto and Crow...[[spoiler:with a [[http://www.youtube.com/watch?v=H9D_V9mxlxk&playnext_from=TL&videos=xv5PYLNNIs0 kiss]], no less]]!
** Following [[spoiler:[[RoboticReveal the reveal]]]], this might as well head into [[spoiler:RoboShip]].
** It's more likely a really affectionate bromance, considering Crow thinks all friends [[spoiler:kiss each other]] and doesn't seem to realize he did anything weird.
* ScrappyMechanic: All weapons will eventually break; the fact that a RandomNumberGod controls it makes it such an annoyance, because a newly-purchased weapon just might be rendered useless following an enemy encounter. The inventory system may also get some flak: it's similar to the grid-based inventory of ''VideoGame/ResidentEvil4''. You can arrange and rotate items as you wish, but it never feels like you have enough room, especially if you're packing backup weapons in case your primary breaks.
** [[GameplayAndStoryIntegration However, various weapons are described as possibly breaking or rather sturdy]].
* TearJerker: You may not cry, but you will feel the urge to; Seto keeps loosing almost everyone he meets during the game, leading to many, ''many'', scenes like [[spoiler: Crow and PF's death, Sai and Shin's ascension...]]
** The tearjerking mostly falls from the Memory Items, most notably the [[spoiler:Torn Pictures and Withered Plant combination]].
** When Crow's [[spoiler:battery runs out and the cutscene after it]].
** The scene in the dam when Seto [[spoiler:discovers a working radio is able to make contact with other survivors, thus [[HopeSpot leading him to finally begin feeling hope again]]]].
* {{Woobie}}: Possibly everyone in the game, even [[spoiler:the MadScientist Shin]].