* Princess Sapphire is easily the funniest character in the third game. Gotta love how she [[ChainsawGood plans to open Mao's heart.]]
** Almaz's response to being [[GroinAttack kicked in the nads]] by her is great: "The Princess ''touched me''! [[{{FanBoy}} I can die without regrets now..."]]
** In Sapphire's introduction scene, she's blasting monsters...and lamenting that she's sending fellow students to the darkness. Then Almaz, in SaveThePrincess mode, rushes up to her...and gets blasted too. Sapphire and Mao then hit it off when the princess admits to being a 'killing machine', much to Almaz's horror.
* [[FoeYay "Princess, I think I've just been violated."]]
* In one of the endings, Laharl barges in and claims to be [[LukeIAmYourFather Mao's father]]. [[http://www.youtube.com/watch?v=3b1f-SX_sOc It's just as hilarious as it sounds.]]
** Best part? Etna and Flonne fighting over who gets to be the mommy. And even after Laharl admits he isn't Mao's dad, Flonne ''still'' insists she's his mom.
* The Super Hero manga Mao reads at the beginning of the game. Two minutes of some of the finest [[ChewingTheScenery Scenery Chewing]] in the game.
** A line spoken in response to said manga:
--->'''Mao''': Truly a super hero... He has 100 dads.
* The Prism Rangers!...just one, actually. As he's lamenting his lack of friends, the party promptly do their own version of the Prism Rangers roll call:
-->'''[[VillainProtagonist Mao:]]''' To ''protect'' the evil of the Netherworld--
-->'''[[HeroicWannabe Almaz:]]''' We cause more trouble than what we're worth!!
-->'''[[AntiAntiChrist Raspberyl:]]''' We, the seven darknesses, lovers of all evil deeds--
-->'''[[BadassPrincess Sapphire:]]''' Will save the Netherworld with reckless ambition!
-->'''[[TheDandy Master Bigstar:]]''' With our powers combined... We are--!!
-->'''[[TheMagnificent Salvatore:]]''' The Cruel Fighter Squad!!
-->'''[[BunnyEarsLawyer Mr. Champloo:]]''' The Evil Rangers, boom!!
-->'''Mao:''' Heh... Perfect. In every way, or at least more than one, we have achieved total victory!
* The normal ending, which is also Mao's CrowningMomentOfAwesome. It's not every day that you see a main character throw the final boss into his lab for experimentation.
-->'''Mao''': [[PunctuatedForEmphasis TO. MY. LAB!!!]]
-->'''Aurum''': [[BigNo NOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO!!!]]
* Raspberyl and Co.'s BigDamnHeroes moment is sidetracked by a stunning revelation from Mr. Champloo- they're graduating! What follows is an utterly hilarious and played-completely-serious graduation ceremony, while the final boss of the level sits on the sidelines and waits.
-->'''Prinny #1''': We were invited to volunteer work...
-->'''Prinny #2''':...and were verrrry annoyed.
* Nearly any scene with Champloo. While we see there's some HiddenDepths to him, his dialogue, especially the early stuff, is still hilariously insane, especially since Mao and Almaz actually agree that they can't make any sense out of it.
* [[http://youtu.be/0HUSx6wdncs?t=2m41s Sapphire]], at one point, decides to take action to open Mao's heart. [[ComicallyMissingThePoint With a chainsaw]]. Mao and Almaz have the predictable reaction, and Sapphire says that she heard demons can't die from things like this, to which Mao says is a lie and runs away. Sapphire chases after him and says that maybe a chainsaw was too painful she'll use a surgeon's scaple instead.
* Almaz finding out Mao's father in the second encounter has a plug and being plugged into a wall socket.
* Upon achieving "Mao's ambition" ending, you get this at the end:
--> '''Mao''': Now that's come to this... The only option left is, to [[NonStandardGameover reset]].
--> '''Almaz''': Yep.
* Mao's reaction towards learning [[BonusBoss Baal]] was the thief:
--> '''Mao''': Tyrant Overlord Baal!? Wasn't he just a ploy to force players into playing their games for 1000 hours longer!?
* One of the things you can steal while having a thief's evilty is "Balls".
* Black Eyes Blue Prinny's description: Sacrifice 3 gods to summon a normal Prinny. Can't attack with White Lightning.
** Likewise, everything involving with Se-to-oh.
* In The Vita UpdatedRelease, in final map of Master Big Star and Salvotore's scenario, We get this dialogue during the cutscene:
--> Prinny Clicks the "bomb remote".
--> Prinny: Oh, crap! I accidentally brought my TV remote! Dooooood!!!
** Master Big Star admitting he done the same mistake also, and Mao [[LampshadeHanging lampshading]] on fail attempt.
* The many different ways Mao has to open his heart are rather bizarre and actually kind of funny, especially when even Raspberyl and her crew wouldn't go that far in doing an act of kindness.
** First, he tries to eat a sunny side egg with hot sauce or something similar to that effect, but the Mao in his heart calls them out on being rather dumb in actually believing that will work. Before that, they also make a big deal out of saying eggs aren't supposed to be eaten with salt and pepper, which you have to fight a bunch of Maos that have a big BerserkButton about it. XD
** The second time seems to work, but it's rather weird... one of the ways to do it is having Mao actually attend school, which not going to school is actually considered a GOOD thing which is rather redundant. As his rival, Raspberyl tries to do the opposite and actually get graduated. Anyways, I'm pretty sure it involved something like dance moves, and Raspberyl is actually there too telling him "Good job!" [[spoiler: This one on the other hand actually seems to have worked. o.O Yeah. XD]]
* It's a bit of a spoiler, but at one point one character gets traumatized into acting like a child, and you can have an optional dialogue of talking to a SUCCUBUS who will flat out say she isn't your mom. We all know how well that would turn out if she accepted. XD [[spoiler: It's Mao, and Almaz accidentally unplugged something in his heart to reduce his mind to a child, so they have to fix him again. When he gets fixed and ask what went wrong, it's even MORE hilarious. XD IMO, it's especially funny hearing Vic Mignogna's voice in English who does Edward Elric from Fullmetal Alchemist. ^^;]]