* CompleteMonster: Hector was the BiggerBad until later in the series. To fulfill [[AGodAmI his scheme of becoming the true creator]], this [[PhysicalGod already god-like being]] was responsible for almost every calamity that happened in the series. His most heinous crimes include being responsible for the horrific torture of [[YggdraUnion Nessiah]] who had been an ActualPacifist FallenAngel solely out of hatred for Nessiah's pacifism. He was also responsible for driving the Archangel [[KnightsInTheNightmare Marietta]] into insanity and using [[YouAreNumberSix people as test subjects for divine weapons]]. Hector sacrificed his own servant and the hero [[RivieraThePromisedLand Ein's]] girlfriend to awaken the spirit of destruction]] for the final phase in his plan: [[OmnicidalManiac slaughtering the entire population of one world.]].
* CrackIsCheaper: Especially given the rampant amount of AllThereInTheManual.
* [[CrowningMusicOfAwesome Crowning Soundtrack Of Awesome]]: Every single game. Adachi Minako and Hayashi Shigeki have collaborated on most of the soundtracks.
* PlayerPunch: At least one per game.