* AuthorsSavingThrow: Although it doesn't come out and say this, ''[[UpdatedRerelease Ragnarok]]'' shows that Demon Prier [[spoiler: can appear as an EnemyWithout]], explaining Prier's changes in her ''Franchise/{{Disgaea}}'' cameos.
* ContinuitySnarl: Trying to keep up with the status of Prier in her cameos can induce a lot of headaches due to the conflicting nature of her personality and backstory in said cameos. Her cameo debut in ''VideoGame/DisgaeaHourOfDarkness'' raised a lot of eyebrows for those who assumed the original game's Normal Ending was the canon ending and it only got more confusing as Prier's personality swapped between the affable fight happy girl from the original game and the infamously ruthless BloodKnight introduced in ''VideoGame/Disgaea2CursedMemories'' with each appearance. The UpdatedRerelease tried to rectify this by showing that she has the potential to have either personality. Even so, other details come back to make this confusing like her claiming that she lost everything and has no one left in ''VideoGame/{{Disgaea 5}}'' when ''[[VideoGame/PrinnyCanIReallyBeTheHero Prinny 2: Dawn of Operation Panties, Dood!]]'' showed that Culotte is still alive (Whom Prier had previously mentioned in [[VideoGame/Disgaea3AbsenceOfJustice Disgaea 3's Raspberyl Mode]]).
* EvilIsSexy: Eclair's SuperpoweredEvilSide wears nothing but lingerie. Demon Overlord Prier is also considered this.
** [[BiggerBad Calamity]] is this as well. She wears almost NOTHING.
* GrowingTheBeard: Arguably a case of this for Nippon Ichi, as most of their later games borrowed mechanics from this one.
* MagnificentBastard: Noir. [[spoiler: He pulled an EvilerThanThou on the supposed AntiChrist]]
* MoralEventHorizon: Noir all around acts far more cruel in the Overlord Prier storyline [[spoiler: but he really crosses it in the Bad Endings where he kills Croix right in front of Prier.]]
* TheUntwist: [[spoiler: Alouette turning out to be the Maiden of Light and Croix turning out to be the Dark Prince.]] The game does such a poor job of keeping this a secret that in the [[http://lparchive.org/La-Pucelle-Tactics/ LP archive]] let's play of the game, which depicts the plot as Prier telling a story of the game's events to the cast of the original Disgaea, Laharl figures it and tries to say it, but Prier stops him.
* WhatAnIdiot: [[spoiler: In the good ending to the Demon Overlord Prier storyline, Noir tries to pick a fight with Prier and Croix, despite that Prier just showed that she was strong to PURIFY THE DARK PRINCE without killing him, and Croix still having all the powers he had as the Dark Prince.]]