Heroic BSOD: When she returns home to her lighthouse, she discovers that it's been destroyed, and all of her adoptive children have most likely been killed. She breaks down and delivers a heart-wrenching soliloquy about her uselessness. Said soliloquy was so impressive that they even included it on the official OST album under the trackname "Enfants Disparus".
Hot Scoop: She even used to be the page picture for that trope!
In-Series Nickname: Shauni which she chooses as her penname, but turns out to be her real name, Miss Thyrus (by Double H until his brain unscrambles enough to start calling her Miss Jade instead) and Little Rookie (by the race announcer.)
Beneath Notice: So good at hiding his identity as the chief of IRIS, that not even his second-in-command (Hahn) knew who his boss was. The Alpha Section pulled the needle out of the proverbial haystack when they captured him.
Everyone Calls Him Barkeep: Although Jade's IRIS teammates call her by her name most often, Double H is only called by his codename... except for when he's dying. Then, they call him "Hub." Word of God confirms that his full name is Hubert.
Fire-Forged Friends: While it's not that she actively dislikes him, at first, Jade is clearly a lot less comfortable while working with Double H than she is working with Pey'j. However, the trials they endure together in the Factory unite them, and they become true friends. She's still a little less sure of him than she is of Pey'j, but even that begins to change.
A group of (supposedly related) rhino people who work at Mammago's Garage, who all talk and act like Jamaican stereotypes. They are the only ones who accept pearls in the game, which you can use to upgrade your hovercraft or spacecraft.
Reasonable Authority Figure: She not only knows the Alpha Sections are bad, but she and her team of hackers are actively willing to help IRIS.
The Lighthouse Children
Fehn, Pablo, Oumi, Yoa, Kip, and Zaza are a group of six children whom Jade watches over. They are all orphans of the war against the DomZ. Jade's desire to provide for them kickstarts the plot as she takes a risky job for the sake of helping them. They eventually get kidnapped by the Alpha Sections, which drives Jade to a Heroic BSOD before coming back around to save them.
Adorably Precocious Child: Kip, who takes a lot of responsibility for the other kids despite seemingly being one of the younger ones. Oumi is female, but has many of the same personality traits.
Gonzo Journalism: If you subscribe to the Hillyan News, you can be treated to his efforts to slander the IRIS "terrorists" after every major plot event (often immedeately afterwards). Satisfyingly twisted in your favor right before the endgame.
Professional Butt-Kisser: If he isn't outright in the Alpha Section's pocket, he sure does love buttering them up. Thus, when you blow the lid off the entire conspiracy at the end, he somewhat sheepishly spends his last broadcast singing the praises of the "proud journalistic profession".
Propaganda Machine: One arm of it for the Alpha Section. When they broadcast audio of his interview with Jade, they include Pey saying "You guys are not what I'd call as fast as a speeding bullet!" They conveniently cut his follow-up, "Keep doing nothing, and next time, there'll be nothing left to save!" Also, they omit the "not".
Dying Curse: He curses Jade and tells her why she's doomed to fail, because he thinks she's already lost everything important to her—her uncle, her kids, and even her parents. Jade stares him down until his death, because she knows how wrong he is.
General Failure: There's really nothing excusing his handling of the military. On the other hand, considering his allegiances, he's not exactly in a position to care...
Obviously Evil: Wears black armor. Has no hair. Makes hammy speeches on the television about how "Great" it is to be a member of the Alpha Section, while lunging his arm forward in a Hitler-like fashion.
Optional Boss: Of the Alpha Section HQ sidequest; he follows up a hair-raising stealth sequence (evade detection at all costs or die instantly) with a Jump Scare and a memorable Roof Hopping escape.
Mighty Glacier: If you're not able to exploit their obvious weak point (below) or just choose not to, you can take one out in a straight fight with some Bullfight Boss-like tactics. However, their hammers hit damn hard if you mess up, and they can take a lot of punishment. Fighting a crowd of them is usually unwise unless you're very good with melee combos.
Obviously Evil: That the Alpha Section doesn't mean well is really no big surprise. Beside the traits that General Kheck shows, the average soldiers never shows their faces, has glowing red visors, and wears black armor with skulls painted on them.
Kick The Oxygen Tank: Kicking it once causes them to run around uncontrollably until they get it repaired. Kicking it twice causes the tank to fly into air, taking it with them higher and higher, unless they hit a ceiling or something else and explode.
Powered Armor: It's even better than the regular army's laser proof armor.
The apparent leader of the DomZ and the Final Boss of the game, who seems to have a specific interest in Jade. He appears as a strange squid-lobster hybrid... thing with a particularly screwed-up voice.
Big Bad: It is the thing responsible for the main conflict.
The Corruption: If the pod on Pey'j's hand and the grotesque faces of the Alpha Section soldiers are anything to go by, the DomZ Priest can cause something along the lines of this.
Deadpan Snarker: Isn't really one, but how he says "the pig" (referring to Pey'j) gives off vibes of this.
Death by Irony: Before she was "taken away" and turned into a human, Shauni (Jade) was the source of his powers, and he wants her back. She's the one that kills him. Ends up pulling double-duty as Hoist by His Own Petard, in that sense.
Eldritch Abomination: Yeah, it doesn't look all that threatening, but... seriously, what the hell is it? Where did it come from? How was it created? What the fuck is with the giant humanoid statue that it rests on? What's with the statue's deformed, almost holographic face? What's its gender? In what way is it a "priest"? Did it create the other DomZ? Are there more like it? Nobody knows, at least until we get some answers at the second game.
Also, it basically looks like a floating head with something resembling tendrils and mandibles. The very first utterance of a line it ever had was a cough, followed by him saying that he's dying. If we may be so blunt as to ask, "Your Excellency", what happened to the rest of your body?
Evil Overlord: Inverted. He's secretly in command of an interstellar military force, not the planets' own security forces. He wants to drain the population of its life energy, not lord over it, and his existence is seemingly top-secret to all those that know, even enemies.
Fantastic Racism: He almost derisively refers to Pey'j as "the pig" at one point. Might've just been a jab at the individual in question, however, seeing as how Pey'j was apparently among those that took away the source of his powers; it's somewhat understandable that he might hold a grudge over that.
Flunky Boss: He primarily lets that giant statue spawn crystal shields to protect him from attacks by Jade. Said statue also captures Pey'j and Double H, projecting copies of them to attack her, after the regular DomZ minions are out of the way. The only time he's ever fought directly would be after he drowns the entire area (apart from the triple elevator platform), where he literally comes face-to-face with Jade, lunging his entire figure at her to literally throw her off her feet.
For the Evulz: He wants to live longer and restore his original level of power back. Okay, so maybe he wants to accomplish something important to him? ... nope, he just wants to live longer. Not a very good reason for him causing something along the lines of mass murder.
I'm a Humanitarian: When he attacks Jade by basically head-butting her, it almost looks like he's trying to eat her.
Obviously Evil: Although introduced in the very last level of the game, the Priest makes its debut standing in front of the commander of the Alpha Section, who refers to the Priest as "Your Excellency". Hell, appearance notwithstanding, its echoing, almost sickly voice tone, on top of how he orders said commander to find Jade and bring her to it, clinches it.
Puzzle Boss: You're supposed to defeat him by never missing a beat in hitting him whenever he turns up in a regular pattern. People who don't get this end up whaling on him only to get struck and returned to the start of the pattern, in a truly Sisyphean task.