"There is, of course, more than one universe. In one such world, in the corner of a backwater galaxy, humans rule over a senseless planet. However, that's about as important as a speck of dust in this pluralistic cosmos. Well, here in the netherworld, things work in the same way. I wanted to tell him that... But he had enough problems with my prophecy already..."
"Disperse, loyal battle monkeys! Do my bidding and BUST A CAP!"
Anti-Gravity Clothing: Then again, most of the characters featuring this are practically forces of nature themselves. Presumably gravity is hiding in a corner to avoid attracting attention.
Anticlimax Boss: The optional encounter with Asagi must be unlocked with a level 1000 character and a massive amount of mana. Asagi herself is level 50 and will likely go down with one hit.
Art Shift: The begining and ending of the game features a different pool of sprites for the characters, they're highly detailed and proportinal to their offcial art, very different from how they appear in the main game, looking like something straight out of Odin Sphere.
Combat Medic - a playable class, one of the Soldier classes, functioning as a healer with gun proficiency. Healers are also surprisingly powerful in this game if you put a syringe into their hands.
Cool Starship - The battleship Yoshitsuna, piloted by Bonus Boss Prinny Baal, which can be yours if you can defeat it.
Cutscene Power to the Max: Zetta, even in book form, is still the most powerful overlord in the cosmos. In his appearances as a Bonus Boss in later games, as well as in one cutscene here, he still has the power to obliterate things with tremendously powerful eye beams. He does not use this power in this game's gameplay, however.
Decoy Protagonist: Played with. While Zetta is indisputably the main character of the game's storyline, the player never directly controls him (save in one fight where you get A Taste of Power). This is even lampshaded in one of the random lines your troops can say, when they point out that the real main character is whichever random soldier the player has chosen to control.
Dimension Lord: All of the main characters are rulers of a Netherworld (or the Underworld in Seedle's case). Trenia is the only exceptions and she's the spirit of the Sacred Tome, which may qualify her as one anyway.
Faux Affably Evil: Most of the overlords except Seedle, for a certain value of 'evil'. Dryzen is probably the most prominent example.
Genre Busting: The game is a weird mixture of Disgaea and Phantom Brave, revolving around summoning allies in the middle of the battlefield but less dependent on objects already on the field. There's nothing exactly like it. (Then again, there was nothing exactly like Phantom Brave either).
The game's original Japanese name is Phantom Kingdom, making the Phantom Brave connection more obvious.
Ho Yay: Quite a bit coming from Alex, but King Drake & Zetta offer up this exchange:
Zetta: Aren't you the one who attacked me in my sleep?
KING Drake THE THIRD: Only because I wanted your junk.
Zetta: ... You sick bastard. I didn't know you swung that way.
How Dare You Die on Me!: A rare pre-mortem example: After Zetta is cursed to die in two days, Alexander confronts Zetta with these words, furious at the prospect of losing his rival... And then tries to beat the curse to the punch. This comes, naturally, with a huge dose of Ho Yay.
Inner Monologue - Zetta does this a lot, one time Pram even calls him out on it.
Japanese Pronouns: Each Overlord uses a different pronoun for "I" that helps the listener quickly key in on their personality. See the Character page for more.
Joke Character - King Drake upon recruiting him. His poor Aptitudes prevent him from properly using three out of the four weapons he's good with, and the one weapon type he CAN properly use happens to be the weakest in the game. Just stack him full of shoes and use him to throw people around. That's as useful as he's gonna get.
Large Ham: King Drake the Third. Zetta is a distant second-place.
Leitmotif: Each of the Overlords has their own theme music. When their Netherworld is selected at the beginning of each chapter, the music changes, as well.
Like a Badass out of Hell: Seedle is the ruler of the afterlife. How did he come by this position? He was a human warrior who died, went there, and in Zetta's words, "kicked so much ass that they made him the boss."
Mythology Gag: Being a Spiritual Successor to Phantom Brave, there's the "Confine" ability. It doesn't work the same way here, with Zetta being literally confined to The Sacred Tome. More notable is when Trenia returns to The Sacred Tome, she says out "Confine".
This is also how Zetta gets Player Mooks in the game mechanics; by Perma-confining their Phantoms to the leftover rubble.
Valvolga's regular form — a multi-armed demon, an angel head and a dragon skull mashed together into one being — is intended to be evocative of this trope, which is why he's often referred to as "The Last Boss" (of other games).
Subverted by King Drake's... *Snicker* true form...
Oracular Urchin: Pram and Trenia. Later, it turns out that Pram doesn't have the power of precognition after all. She was just reading from the Sacred Tome, which recorded the entire past, present and future, the whole time. Also, the Sacred Tome, or rather spirit of it, is actually Trenia, which explains her own power of precognition.
Really 700 Years Old: According to King Drake, he and Zetta only met about 10,000 years ago, so imagine how old they must be.
Recurring Boss: Raiden. Other than Alexander and Salome, he's the only true "boss" you fight during the normal quest.
Rewriting Reality: Literally. The Sacred Tome creates whatever is written down in it, but takes the mana of whoever wrote it down to fuel the creation. Overlord-level demons can create entire Netherworlds and just get a little tired, but the mook-level demons you control get killed by the backlash of creating anything. (However, this is a great way to get them to reincarnate if their initial item for creation didn't have any stars.)
Schizo Tech: None of the Netherworlds appear to be very advanced technologically, but the demons fight with all kinds of futuristic weapons - guns, tanks, UFOs...
Self-Fulfilling Prophecy: This is how the game is started. The Sacred Tome reveals that Zetta's stupidity will doom the Netherworld. Insulted, Zetta burns the book, destroying everything and proving the prophecy right.
One of Zetta's powers at the start, Darkness Falls, causes the wall behind the user to turn red. Swords then emerge, leaving ripples behind, and then the swords are launched at the target. Faking Mongrel!
Hitting select to cycle through a list of random names when making a character will turn up a lot of Shout Outs. The Final Fantasy series seems to get a huge number.
Shovel Strike: Shovels are among the less weird weapons in this game.
Zetta forgot about the book that bound together the fabric of his very universe. And then he set it on fire. He also didn't pay that much attention to how he became Overlord the first time.
The game will lampshade this in one of the Non Standard Game OverZetta can go challenge Salome in her prime. Upon defeating her, he starts losing his powers as Salome was the source of his power. A hint pops up saying what you did wrong to get the game over, which effectively states "Be careful what you wish for because you may end up feeling stupid afterwards."
Wasted Song: Devil's Descent, Valvoga's theme, only plays twice, during its introduction and as the Bonus Boss music against him.
Weapons Kitchen Sink: Everything from swords to drums to wrenches to balloons can be used as a weapon.
We Cannot Go On Without You: Justified. Zetta is the Book that controls the nearby reality. If he dies, the dimension collapses. In fact, if he gets hurt everyone gets hurt. You can actually manipulate this, too; while injuring Zetta will cause you to be unable to summon any more units, you can quickly heal or buff your entire team by tossing the appropriate spells at him, so long as you're prepared to deal with the enemies getting the same effects.
World of Ham: Good Overlords. Even by the standards of other Nippon Ichi games, this is a hammy game. Every single one of the dub actors go completely overboard with lines, screaming out their Badass Boasts and war cries before each fight... and even when there isn't a scrap going on, everybody seems to be taking bites out of the scenery. Crispin Freeman and Jamieson Price masticate an entire set between them.
Victory Is Boring - In Alex's ending, where he kills Zetta and then wallows in boredom as Zetta was the only one that offered a challenge to him.