* AlternativeCharacterInterpretation:
** Philemon isn't like the Abrahamic God, being all-powerful compared to Nyarlathotep's Devil. No, Phil and Nyarly are roughly equal in power and Philemon is actually saving us by making his bet with Nyarlathotep--because if he didn't push Nyarlathotep into accepting a game with rules, using humans as the pieces, then Nyarlathotep would just lash out first and destroy everything. This way, we get a chance and Philemon gives us the power to keep pushing back. He's still kind of a callous jerk about the damage this does to his chosen champions' lives, though.
*** Philemon is the incarnation of humanity's greatest aspects and potential and gives everyone the Personas and motivation they need to stop Nyarlathotep. Does he do this because he genuinely loves humanity, or because he's [[NotSoDifferent just as prideful as Nyarlathotep and doesn't want to lose his bet?]] Are his words of encouragement given because he's benevolent GuardianEntity who wants humanity to flourish, or a ManipulativeBastard who sees humans as pawns to use against Nyarlathotep?
** You know, Tatsuya's classmates' fawning over him doesn't make a whole lot of sense, given that he does nothing to warrant any of it. That is, until you consider all the rumors swirling around him.
* AnticlimaxBoss: If you prepare for the bosses, they'll become this trope. It's also possible to [[spoiler:kill 'em all with Armageddon]].
* AuthorsSavingThrow: The North American version of ''Eternal Punishment'' is a peculiar example, as it reverted the original ''Persona'''s characters back to their canonical Japanese surnames. For sake of continuity, however, the characters' first names were left Anglicized. The localization team tried to compensate for this ContinuitySnarl by retconning some of the bigger translation goofs; for example, the revelation that "Guido Sardenia" is actually an alias for Guido Kandori, the previous game's antagonist. He's still named Guido, due to Nate and co. retaining their western names, so ''Eternal Punishment'' breaks even and just calls him Guido Kandori.
* AwesomeEgo: For most of ''Innocent Sin'' Eikichi Mishina would happily talk about how awesome he is, and most of the fans of the game would agree.
* BaseBreakingCharacter: [[ClingyJealousGirl Lisa's]] fixation on Tatsuya makes her far and away the most disliked principle cast member to come out of the ''Persona 2'' duology. She dogs him right up to the end of ''Innocent Sin'' despite how obviously uncomfortable her behavior makes him, displaying little regard for his personal boundaries (calling him pet names, [[StalkingIsFunnyIfItIsFemaleAfterMale physically following him around]]) or his actual feelings ([[IfICantHaveYou she refuses to let go of her crush]] even after the party defeats her Shadow, and [[RomanticRunnerup Tatsuya confesses to another party member]]). That's bad enough on its own, but it gets even worse when it's made apparent how little her infatuation has to do with him as a person--she sees him as an accessory to her popularity [[EntitledToHaveYou that she's entitled to have]] ''just because she wants him.'' Those less critical of her will point out that she's otherwise quite amicable towards her romantic rivals (particularly Maya), and that her behavior ''does'' improve somewhat over the course of her character arc. They also point to her SpoiledSweet tendencies, [[{{Adorkable}} silliness]], and relationship with Eikichi as the source of some of the funniest, most light-hearted moments in an infamously dark game, but her [[ItsAllAboutMe shallowness]] and lack of respect for Tatsuya still leave a bad taste in plenty a player's mouth.
* CommonKnowledge: No, Adolf Hitler is not the FinalBoss of ''Persona 2''. Rather, [[spoiler:he's the first form of the Final Boss of ''Innocent Sin'', and even then, he's just an avatar of Nyarlathotep, the actual Final Boss of both games]].
* CompleteMonster: From ''Eternal Punishment'', we have [[EvilOldFolks Tatsuzou Sudou]], the tyrannical [[CorruptPolitician Japanese Foreign Minister]] who uses the doomsday cult he founded, the New World Order, to further his own political ambitions, and to coordinate an [[AscendedToAHigherPlaneOfExistence ascent to a utopian society free from original sin]]; through the cult, his criminal activity runs the gamut from unethical human experimentation, to assassinations, to political whitewashing. Even [[AxCrazy his own son Tatsuya]] proves to be no exception to his father's despotism, and when he escapes from the sanitarium he was committed to, Tatsuzou orders a hit on him from the Taiwanese mafia. When the New World Order successfully raises the spaceship Torifune from underneath Sumaru City, nearly annihilating everything on the Earth's surface in the process, he transforms [[YouHaveOutlivedYourUsefulness his companions]], and finally himself into mutant demons to protect the ship, and his "god" from the party, though his efforts are ultimately unsuccessful. It's really no wonder his character was revamped into the nasty piece of work that is [[VideoGame/Persona5 Masayoshi Shido]].
* GameBreaker: Some of the Fusion Spells are these. Of note is Dashing Strike (Zio + Tackle), which can be obtained as [[DiscOneNuke early]] at level 15 if you get lucky with mutating Minotaur; going off Michel's huge attack stat, it deals massive amounts of damage to multiple enemies ''multiple times'' that can easily carry you throughout the endgame provided the enemy doesn't resist Physical. There's also Armageddon, but it's [[AwesomeButImpractical less practical]] due to needing to be at least level 94 to even invoke the exclusive personae needed to use it. Level 94, and a new game plus, as you can't get both materials in one run of the game. You need the Accuser's Diary and the Morning Star from the casino, but the Star won't show up unless you clear Nate's Route and the Diary won't show up unless you clear Ellen's route.
* GeniusBonus: There's several small bits of trivia, ranging from Aztec mythology to the significance of the names Maya and Maia.
** The publishing company Maya works at, Kismet, is a synonym for "destiny".
*** And, of course, all the Personae (except Tatsunoshin Suou, Maihime Amano, Junnosuke Kuroda, and Alfred/Yamoaka from ''Eternal Punishment'') are from real mythologies.
* HoYay: Jun Kurosu, who ''definitely'' sees Tatsuya Suou as more than a friend. Doubles as ShipTease.
** Parts of the game and [[WordOfGay interviews]] would imply Tatsuya and Jun are the intended ''Innocent Sin'' pairing. Specifically scenario designer Satomi Tadashi [[note]]Interestingly enough, he seems to ship both Tatsuya/Maya and Tatsuya/Jun [[/note]] and character designer Kaneko Kazuma.
* LesYay: Yukino and Anna in ''Innocent Sin''. [[spoiler: If you pick the wrong choice to leave Yukino behind at the entrance to Caracol, you encounter Shadow Yukino and Anna instead of the Longinus mechs, at which point Shadow Yukino [[https://www.youtube.com/watch?v=0Nlaazca4Y4#t=76 kisses]] Anna. After the battle, Anna will jump off the bridge in Caracol holding hands with Shadow Yukino, who convinced her to do it so that they would be together forever. If you bring Yukino, she will, after you fight Joker, give her Persona ability to Jun and go off into the city to fight Nazis with Anna, who has promised to look after her now that she doesn't have her Persona anymore]].
* MagnificentBastard: Nyarlathotep, of course. He sets the board up to his advantage, his plans have such style, and his manipulations so meticulous and cunning that [[spoiler: he's the only ''Persona'' god to actually ''win''.]]
* MemeticMutation: Let's positive thinking!
** Tatsuya's talent in SFX-imitating, as lampshaded in the drama CD. Fans took it and ''ran with it''.
* MoralEventHorizon: [[spoiler: Believing and support in the apocalypse started by Nyarlathotep would be bad enough, but Okamura definitely crosses one when she stabs Maya with the spear of Longinus, killing her in ''Innocent Sin''.]]
* {{Narm}}: The voice acting in ''Eternal Punishment''. Leaves much to be desired. "It's self-defense. There's NO problem with that," anyone? Also, Hitler wearing sunglasses in the PSP remake.
** NarmCharm: Nobody can deny this makes the fight even better.
* NeverLiveItDown: Even if Philemon is the personification of human's goodness and tried his best to help the heroes against Nyarlathotep [[GodsHandsAreTied with his hands tied]], good luck finding people who won't consider him a jackass because he made the bet with Nyarlathotep in the first place.
* SignatureScene: The finale of ''Innocent Sin'', particularly the boss fight with Hitler, which is on the level of fighting YHVH in ''VideoGame/ShinMegamiTenseiII'', and to a slightly lesser extent, [[spoiler:Okamura killing Maya, resulting in Nyarlathotep destroying the world and the setup for ''Eternal Punishment'']].
* TakeThatScrappy: Tadashi's absence in ''Eternal Punishment'' is explained that he is being chased by assassins though it is likely also because of him being generally disliked by the fans.
* ThatOneAttack:
** One of the Bolontiku in ''Innocent Sin'' and [[spoiler: Metal Jun ]] in ''Eternal Punishment'' have an attack in their respective games called "Terror Fortune" which deals moderately high [[BlowYouAway Wind]] and [[CastingAShadow Dark damage]] to the entire party, which isn't so bad. The problem is that it [[FromBadToWorse ALSO]] inflicts [[StandardStatusEffects random ailments on your party]], including [[InstantKO instant death]]. Have fun keeping your party alive...
** "Old Maid" in ''Eternal Punishment'' is no fun either. It's a spell that turns one of the character's persona into Joker. When this happens, if you don't immediately abort your battle and defend, it will do some decent damage to the party. What makes this spell a real pain in the ass is that Joker battles tend to have the Joker in question spam the spell repeatedly, dragging the battle out.
* ThatOneSidequest: The cartography (map-making) sidequest in ''Eternal Punishment'' involves a LOT of running around every square inch of a dungeon, probably doing one or two of the dungeon's puzzles (like the Secret Lab's Fuse Box puzzle), walking over all the traps and pitfalls, and generous use of the Estoma spell. It's not fun and it can be draining. And if Salam didn't offer up a King's Ransom for his requests (for an equivalent, think of the rewards on par with [[VideoGame/FinalFantasyIX Chocobo Hot and Cold]]); nobody would willingly do it.
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