* AlternateCharacterInterpretation: Keima gets a lot of this, specifically just how much he cares for other people.
* ArcFatigue:
** The [[ShrinkingViolet Shiori]] Arc, which lasted for three episodes, still had rather stretched out scenes, all of them from Shiori's perspective. The whole thing could've been reduced to two episodes.
** The awakening of the final Goddess, [[spoiler:Mercury]], drags on throughout the entire second half of the Goddess arc due to the LoveTriangle mess between Keima, Ayumi and Chihiro.
* [[SugarWiki/AwesomeMusic Crowning Music of Awesome]]:
** The anime's opening theme song [[http://www.youtube.com/watch?v=cvE74C-paxw "God Only Knows" by ELISA]] and even better, the [[http://www.youtube.com/watch?v=D3vblmtccL0 full, 8-minute oratorio version!]]
** [[http://www.youtube.com/watch?v=6neqR0HvHpA The second opening]] is done in the same style and, despite being considerably shorter than the first, is [[http://www.youtube.com/watch?v=4KFtgUdk11k quite epic]] too.
** And from the manga:
--> The Dream Traveler of the Integrated Circuit [集積回路の夢旅人]
--> Composer: Katsuragi Keima
--> Singer: Katsuragi Keima with 2D Galz
--> [[http://www.youtube.com/watch?v=9saxcHj6im8 Now it's a real song!]]
* EnsembleDarkhorse:
** Shiori is apparently very popular among the Japanese. In fact, [[WordofGod her first capture arc really pushed this series' popularity to be on the map]]. Considering her [[PutOnABus long absence]], she ranked number 3 in the most recent official poll. She was just right behind the neck to neck contenders for number one spot Tenri and Haqua, both appear in many more chapters compared to Shiori (at least until it became rigged by 2channers after the first few days).
** Kanon is one, although not as much as Shiori.
** Judging by the later chapters, Chihiro is on her way to becoming one. After all she is [[spoiler: the only one who liked Keima, even without the memories of her conquest]].
** Urara quickly became one due to her...naughtyness as a minor. [[spoiler:Then later on, a Weiss enters her and she suddenly ages into a ''fine'' looking woman.]]
* HarsherInHindsight: [[spoiler: During Chihiro's capture arc, Keima said that there is a weird factor about her - "there is a boy she likes" - Elsie also speculated that "crevice in her heart got bigger because of her love".]] Everyone forgot about it after the capture, and then [[spoiler: in chapter 166 we got to know that the boy she liked is Keima, and it was her inability to cope with this (with the fact that she likes probably the least popular boy in the whole school) that made it possible for a Weiss to possess her]].
* HilariousInHindsight: Keima's ''highly'' in-depth gal game site, "Capturing God": "[...] [[TropesAreTools It has a very unique way of thinking]], and once you've taken a look at it... [[TVTropesWillRuinYourLife it'll change your life forever]]."
** Urara's introduction has her trying to act like an adult. [[http://static.mangatraders.com/view14/148036/195e37105fd04c717e438e7dc21e55df.jpg A few chapters later...]]
* HoYay: Sort of, in Chapter 124. [[spoiler: Yui, in her masculine clothing]] apparently trying to seduce Keima. Made worse by Keima's rather feminine response [[spoiler: probably due to spending time in Yui's body]].
* IronWoobie: Though he says he doesn't like real "girls", it becomes apparent that what he hates is in fact everything real - he finds himself at such odds with the real world that he actively rejects it and takes refuge in games. What he's doing is going outside an incredibly small and restrictive comfort zone in order to do someting he would run away to avoid if he had the choice, but he's shouldering the burden and putting his everything into this thing he hates doing. And, though he might moan, he never runs away, never breaks down - he always keeps his cool and goes through with it.
* {{Moe}}: The girls that Keima has to court are plays on {{Moe}} stereotypes in varying degrees. Being a GenreSavvy Otaku, he goes into a rant when he encounters one that ''doesn't'' seem to fit with the archetype.
* {{Narm}}: Some of the lines can be downright cheesy
** NarmCharm: ... and yet still awesome.
* NightmareFuel: Chapter 67.
* NightmareFuelStationAttendant: Elsie simply doesn't comprehend why humans might be disturbed by her cooking, or the souvenirs she brings back from hell, or the idea of eating something ''alive'' because it's fresher.
* OneTruePairing:
** Keima×Tenri, Keima×Elsie, and Keima×Haqua. The rest of the sub-heroines don't stand a chance...
** Diana as a bonus for Tenri-fans, or vice-versa.
** [[spoiler: Although Diana's sisters may shake things up.]]
** Keima×Yui is gaining ground fast. Yui is pretty much the only girl that has actually made Keima flustered, and Keima admitted that even though he was trying to just put on an act, he wound up letting her take the lead a lot and she made him feel "fuzzy headed". Haqua even notices and comments on it, teasing Keima that maybe his "real" girl type is one with a forceful personality. Not to mention the fact that she's the first human girl he's seen naked because [[spoiler: they swapped bodies for a time]]. Actually, the reverse holds true as well.
** There's also a lot of support for a Keima×Kanon pairing, especially in the recent Goddess Arc. Plus, Kanon is the [[FirstGirlWins first girl]] to confess to him.
** Keima×Chihiro got more fans supporting it thanks to last chapters in the "Searching for the Goddesses" arc, as well as the revelation that Chihiro [[spoiler:had probably genuinely loved Keima before her capture arc, through no manipulations on his part]].
* OneTrueThreesome:
** Keima/Tenri/Diana FTW. Quite complicated because Diana is inside Tenri's body, and some of the fans like her via Tenri's body.
** One chapter title played with this trope, Three of a Perfect Pair, but it was talking about Keima/Hakua/Tenri or Diana, most likely Tenri.
** In [=FLAG=] 167 (appropriately titled [[WhamEpisode WHAM]]), she realizes that her power has been limited by her own guilt over being attracted to Keima.
* RescuedFromTheScrappyHeap: In Kanon's first arc, she wasn't well-liked due to her AttentionWhore / {{Yandere}} tendencies, but in her later appearances she's a much more endearing and likeable character, even turning into something of an EnsembleDarkhorse.
** BreakoutCharacter: The ending result. She now stars her own spinoff, Magical☆Star Kanon 100%.
* UglyCute: [[OffModel Yokkyun]], [[CargoShip Keima's digital crush.]]
* ValuesDissonance: While it's PlayedForLaughs, goddesses are apparently cool with [[SupportingHarem polygamy]], [[DoubleStandardRapeFemaleOnMale rape]] and [[{{Lolicon}} pedophilia]]. Check it for yourself [[http://mangafox.me/manga/the_world_god_only_knows/v20/c190/5.html here]] and [[http://mangafox.me/manga/the_world_god_only_knows/v20/c190/6.html here]].
* ViewerGenderConfusion: [[DaChief Dokuro Skull]], revealed to be female (like all other New Devils) in Chapter 151. The anime missed the memo; her Japanese voice actress uses such a gruff voice she sounds male, and her dub VA ''is'' male.
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