A spinoff of Ace Attorney, Ace Attorney Investigations: Miles Edgeworth (Gyakuten Kenji in Japan, lit. "Turnabout Prosecutor") landed its American and European releases in February 2010. Investigations puts Edgeworth as the main character, along with sidekicks Dick Gumshoe and the newcomer self-declared thief Kay Faraday. The game took on a more traditional point-and-click adventure game style, with walking sprites exploring areas rather than simply moving from scene to scene. Rather than engaging in courtroom battles, Edgeworth solves mysteries through Logic, and by countering arguments from witnesses, culprits and the cocky Interpol Special Agent Shi-Long Lang.A sequel, Gyakuten Kenji 2, was released in Japan in February 2011. It features a system called "Logic Chess". This does not necessitate playing chess, but instead acts as a visual metaphor. When Edgeworth can't find a fault in the witness' testimony he can instead ask one of two questions. Asking the correct one will cause the player to "take" one of their "pieces", allowing the "game" to move further. An incorrect choice will have the reverse happen, and the player will lose points from their Truth meter. There are no plans for the sequel to be localized at this time, but there is a Let's Translate on YouTube (complete as of September 29, 2013) while a Fan Translated patch of the first two cases (subtitled "Prosecutor's Path") is currently available in English.A character sheet for the whole series can be found here. Note that this page contains spoilers for the sequel, and may not be properly marked at some points.
In the first case, the killer claimed to have lost his keys and asked a security guard to open the door to "his" office for him. The absence of the security guard's prints on his door, combined with some other evidence and Logic, suggests that he tricked her into opening a different door that she thought was his.
In a later case, the absence of blood on the hilt of a knife that was found inside a victim suggests that the hilt was switched, as there were several knives with hilts and blades that fit each other.
Lauren's father gets killed by her boyfriend. It's further implied that the boyfriend had figured out the father's identity, and was blackmailing him into helping with his staged kidnapping by threatening her safety.
We have QuercusAlba, from Case 5. He's a reminder that there are politicians in the real world who dabble in illegal and crude affairs behind the backs of those they represent and abuse their powers to get away with it.
Ascended Extra: Lotta can be spotted in AAI, and it's implied she takes a picture important to the case, but she's never identified. She plays a very significant role in the last two cases of GK2, and actually gets a sprite this time.
Remember Gregory Edgeworth? Killed by von Karma? You get to play as him in case 3 of the sequel.
Affectionate Parody: The Judge at one point uses the famous "HOLD IT!", but then apologizes for being too loud and simply says "Hold it".
Similarly, Miles using "OBJECTION!" during case two, only to get called on it. He thinks to himself that it's a force of habit.
Always Murder: More obvious in case 3, where the crime is originally just a standard kidnapping.
Similar deal with AAI2 where the initial victims of cases 1 and 4 survive, necessitating that two additional people get killed.
Subverted in AAI2 Case 3. The present portion of the case seemingly has no victim, until a body is found. Turns out, it's the same victim from 18 years ago, whose body was never found.
Amateur Sleuth: Edgeworth does far more of the detective work than any of the actual police. Somewhat justified, as a majority of the prosecutors and police are more concerned with getting a guilty verdict than actually finding the truth.
It doesn't stand out as much as in the main series, since in-universe prosecutors and the police are shown working as partners in investigations. It just so happens that Edgeworth is assigned Gumshoe as his detective...
Ambidextrous Sprite: Pretty much everyone, but it's particularly noticeable with Franziska, who gets another mole on both sides of her face because of this trope, and the Pink Princess, whose shoulder the kanji is reversed.
Amoral Attorney: Calisto Yew takes this to its logical conclusion, murdering her own defendant and a witness. Then again, she isn't a "real" attorney, she just works as one for a crime ring. We also have prosecutor Jacques Portsman, who is the killer in the first case and who also happens to be a member of the Big Bad's crime syndicate. According to Gumshoe he's been suspected of tampering with evidence since a long time back. Oh, and Bansai Ichiyanagi in Ace Attorney Investigations 2.
Anachronic Order: As a flashback case, case 4 is this but is also predecessor to everything that has happened to that point in the entire series (previous flashback cases included). The true sequence of the first game is chapter 4, chapter 2, chapter 3, chapter 1, chapter 5.
Anachronism Stew: Case 4 is set before anything else in the franchise, but has a flat screen TV, color security video with sound, and video on tape. While the first two aren't bizarre for 2011, it is bizarre when chronologically later games use less modern TVs and black and white photo.
Armor-Piercing Slap: This is the game where Franziska will easily whip Edgeworth. She'll whip him a good number of times in required scenes, more if you press certain things or present the wrong evidence. Edgeworth and Gumshoe are also her victims-by-proxy whenever she doesn't want to whip the person who wronged her.
Art Shift: Detective Tyrell Badd is drawn in a similar, but noticeably different, style with facial definition and dark colors that markedly contrast everyone else's simple faces and bright colors.
Asshole Victim: Probably Lance Amano from the third case except that he's not actually a victim.
Manny Coachen wins the prize for Assholiest Victim in the series. Not only did he murder Defector from Decadence Cece Yew and get away with it due to the Amano Group's influence, but he also tried to usurp his "boss" Alba by ensuring Palaeno became the new Ambassador of Cohdopia. The cast even notes he was as much of a selfish prick as his killer.
Subverted with Colin Devorae. It's initially thought that he was an escaped convict who was killed because he tried to steal the ransom money for himself, but it turns out that he was forced into Taking the Heat for Ernest Amano, and Lance most likely blackmailed him into participating in the kidnapping
In the sequel, we have Manosuke Naito; and his father, Isaku Hyoudou. But even they are eventually out-assholed by Teikun Ou's impostor.
Back for the Finale: Larry again. A rarity as he usually shows up in the same game before the last case.
In the sequel, Shelly de Killer, among others.
Badass: Shi-Long Lang stands out here. He manages to stop Franziska's whip in mid-air with his bare hand without missing a beat and when later on he gets shot in the leg at point-blank range, he walks it off.
Detective Badd as well. His coat is riddled with holes because of all the times he's been shot at. He dodges several of (although a younger) Fransizka von Karma's whip attacks, and is cool as a pair of cucumbers.
Edgeworth in a subtle but noticeable moment. When confronted with the burglar in his office (who has a gun to his back and has demonstrated that it is loaded), he has the nerve to defiantly say "No one commits murder in my office. No one."
Bait-and-Switch Boss: The killer from case 4 turns up in the final case, and it looks like they're going to be the head of the criminal syndicate, right? Nope, it's either the shifty looking Colias Palaeno or the seemingly harmless (but not) Quercus Alba; both of which had suspicious names in the Japanese version. (Damian and Carnage, respectively). While both of these characters are awesome, a section of the fans would have preferred Calisto Yew to have been the Big Bad.
Completely averted with Colias Palaeno. When Edgeworth asks if he can investigate, Palaeno says to go right ahead. No questions, no testimony, nothing.
Gumshoe leaves out details from his testimony because he doesn't want it to get out that he essentially bought a swiss roll with Kay, thus causing her to break her promise not to take anything from strangers, even though her father, the one he was trying to keep this from, was already dead.
Edgeworth himself has one when he realizes that Larry is playing the Steel Samurai.
Bilingual Bonus: Several name puns are in non-English languages—for example, Quercus Alba = Latin for "white oak" and Shi-Long Lang = Chinese for "soldier dragon wolf"—the "soldier dragon" of the "wolf" family.
Quercus alba is actually the scientific name for the white oak, just as Colias palaeno is the scientific name for the Moorland Clouded Yellow.
Also, "shifu" is Chinese for "master", which is fitting coming from Lang's respecting subordinates.
It also, in broken Engrish, looks / sounds like Chief.
Brick Joke: A minor one. In case 3, Lang's agents sound off from one to a hundred. Lang gets annoyed at this and tells them that in his book, everyone is number one. Later on in case 5, Lang's men sound off with a chorus of one's.
The brick bounces and lands again in case 5 of AAI2, where Lang is working with only one of his subordinates, who offers to count off to cheer Lang up. When he realizes just "one" is unimpressive, he starts going through various ways of saying "one".
Broken Pedestal: Edgeworth's respect for Manfred von Karma is emphasized here for Dramatic Irony, but it also turns out that Ernest Amano, another person he respects, is also a criminal.
Ambassador Palaeno evidently placed a great deal of trust and respect on Manny Coachen, constantly talking about how he let the guy do all the important work for him and how much he relied on him, and is outright shocked when he is revealed to have been a genuine criminal.
The Bus Came Back: Not counting all the characters last seen in Trials and Tribulations, for the first time since the first game ... Missile came back!
Busman's Holiday: The first game in particular is a rather blatant use of the trope, most evidently in case 2 (a flight that happens to turn into a murder case where Edgeworth ends up being the prime suspect and puts it upon himself to reveal the real killer).
But Thou Must: A notable one near the end of the game, even by Ace Attorney standards. When the time comes to finally confront Quercus Alba, Edgeworth is presented with a personal moral quandary; he must choose between finally bringing an end to Alba's crimes through the use of illegally obtained evidence, or pursuing the path of the Law and letting Alba get away. The choice is presented to the player much like the choice was presented in Justice for All about whether it is more important to save an innocent life by allowing a murderer to go free and condemning another innocent to death or to allow justice to be served at the cost of the hostage's life. The difference here is it doesn't actually turn out to be much of a choice. Choosing not to present the illegal evidence simply results in all the other characters pressuring Edgeworth until he decides that the the illegality of the evidence is subjective anyway and proceeds to present it.
Kay: Dark skies of evening, when no other bird dares to take wing, one alone remains all-seeing! Now, witness the true power of a real, modern-day Robin Hood!
Call Forward: Case 3 gives us a glimpse of the Gavinners' equipment along with their logo on a stage. A banner emblazoned with "Troupe Gramarye" is also nearby. Case 4 makes a reference to Phoenix getting hit in the head with a fire extinguisher, years before it happens.
The Cavalry: Several different parties burst in to assist Edgeworth during the finale, usually with a dramatic "HOLD IT!".
Two of the more literal instances are Shi-Long Lang returning with his army of 100 agents to announce that Alba's diplomatic immunity was revoked and Babahl's embassy guards stopping Alba and his own army of guards from leaving.
Chekhov's Boomerang:The Yatagarasu's Key from cases four AND five. It starts out as a key, then it becomes a weapon, then a key again, then the weapon part becomes a key. Finally, as a weapon, it becomes the ultimate key to defeating the Big Bad. Allebahst's Primidux Statue also gets more than its fair share of use in the last leg of of the fifth case.
In GK2, Naito's chessboard, ring, the correspondence chess memo, and the photo of Kazami and Hyoudou with their sons.
Chekhov's Gunman: In the first case, Gumshoe delivers the line "So I guess only a GREAT cat burglar could get in! That must be who our culprit is!" The person who got into Edgeworth's office was a burglar. Or more specifically, the last member of the Yatagarasu thief group, Detective Tyrell Badd. Good guess, Gumshoe.
Larry does it again in the fifth case and pulls off a Big Damn Heroes with none other than Wendy freaking Oldbag.
Click Hello: Badd gets the drop on Yew during the last case.
Cloudcuckoolander: In case 3, you meet Lauren Paups. You quickly learn that's she's...really out in her own little world.
Co-Dragons: Bansai Ichiyanagi and Mari Miwa to Teikun Ou's body double in AAI2.
In different ways, Calisto Yew/Shih-Na and Manny Coachen to Quercus Alba in the first game.
Computer Equals Monitor: Averted in case 2 of the first game. The group finds a cell phone with a broken screen, but some experimentation shows its internals are still fine, and another character is able to transfer a case-relevant photo off of it to another phone.
Concealing Canvas: Edgeworth's office has a variation—instead of a painting canvas, it's the frame for a suit jacket he used to wear.
Continuity Nod: Has plenty of these, usually when you meet up with a fellow character from another game.
There's also a very minor one in case 3 —if you look behind the stage at the stadium, you can see a sign for "Troupe Gramarye", as well as the Gavinners' logo. Case 4 gives a reference to Phoenix getting hit on the head with a Fire Extinguisher years before it happens.
If you examine the sign up during the re-creation scene, it mentions the Gavinners and Max Galactica vs Troupe Gramarye as upcoming events.
At one point, Franziska discounts some evidence by pointing out that, "people can't fly". Edgeworth then claims to have worked on a case involving a flying person (3-5), and after a pause, Franziska realizes that she's actually worked on two (2-3 and 3-5).
Kay asks if she can keep a bear statue that she found in Edgeworth's possession, referencing 2-4.
Don't forget, if you examine the Judge's seat in Case 4, you get an exchange about Edgeworth having a nightmare about being squashed by the Judge's gavel. This nightmare is a reference to the one Phoenix has at the beginning of 2-1 and 2-4. Same case, if you examine the fire extinguisher in the Court Hallway, Edgeworth will muse how a person getting hit over the head with that could lose a memory or two...which is exactly what happened to Wright in 2-1, when he was bashed over the head with one by that trial's villain Richard Wellington prior to the trial.
On the airplane, Edgeworth recalls a traumatizing experience when the plane has a major case of turbulence that reminds him of an earthquake, then he sees an elevator, lampshades this, then sees a dead body inside. You have to respect the guy for being able to hold it together for the entire case, the only time he panics is just after he sees the body.
Manfred Von Karma boasts that he would have found Manny Coachen guilty in three minutes.
This also appears in the first one, between Edgeworth (ladder) and Kay (step-ladder). Kay comments that from a thief's perspective, the best kind is a rope ladder. Miles thinks that from a prosecutor's perspective, all ladders are equally guilty - of being dangerous during an earthquake.
Edgeworth alludes to Psyche locks during a conversation in case II-5.
Continuity Porn: Beside being a Midquel starring Edgeworth, Gumshoe, and Franziska, minor characters Ema Skye, Winston Payne, Sal Manella, Lotta Hart, Wendy Oldbag, Maggey Byrde, Mike Meekins and Missile also return. You cross-examine the judge, for crying out loud.
Also in the third case, there is a Stage with the Gavinners band logo on it and a little sign (that can only be seen during scrolling sequences) saying " <- Troupe Gramarye". And lets not forget the 'Love Letter' from Viola of Tender Lender...
If you're paying very close attention in the third case as well, you may notice that the real Proto Badger is the Bellboy Who Swore the Affidavit from the first game.
A Running Gag in the first three games is a detective in Criminal Affairs talking to himself, usually image training or some sort. In Rise From The Ashes, he can be found writing a novel where the killer uses a tape to fake a gunshot, which is exactly what Calisto Yew did in Turnabout Reminiscence.
Continued in AAI2, which already has confirmed reappearances of "John Doe" (Shelly de Killer), Frank Sahwit, Polly the Parrot and Gourd Lake. Plus, there will be a flashback case involving Gregory Edgeworth.
Pretty much the entire Case 3 of AAI2 is this. But it doesn't stop there, you also find out who the Chief Prosecutor who gave Manfred Von Karma the penalty was and who brought down Lang's family reputation in Zheng Fa.
Conviction by Counterfactual Clue: A very minor example. During one crime scene recreation in case 3, Edgeworth deduces that the culprit must be right handed based on the location of the wound and blood from where he was struck. However, it's entirely possible that a left-handed person could have hit him back-handedly or just stood to the right of Edgeworth. While not case-breaking or definitive by itself, it does steer suspicious toward the real guilty party.
Contrived Coincidence: The whole first game, full stop. One day Edgeworth finds himself on a plane when some turbulence causes him to black out and then is accused of killing a man found in an elevator on the plane. The day after that, he's at an amusement park delivering a ransom to save the kidnapped son of a friend...when that turns into a murder too. While doing this, he stumbles across a girl he met years ago when first working as a prosecutor during a case that involved the murder of her father. Then he returns to his office to find the body of a police officer lying next to his book case. All these incidents are related, despite the fact Edgeworth's presence at all of them is no more than simple good luck. The final case pulls these events together but only explains that they are related, not that they have any meaningful relation to each other. The plot is driven purely by Edgeworth being in the right place at the right time.
Cool Key: The Yatagarasu's Key. Very ornately designed, and transforms into a knife to boot.
The Corpse Stops Here: Lampshaded if you press Lang on his being the first to find Mask DeMasque II's body. Edgeworth will point out that Kay was suspected because she was the first to discover Manny Coachen's body.
Cosmetically-Advanced Prequel: Case 2 features a camera (possibly "smart" given the owner is described as playing with it) phone, while Apollo Justice has a (already slightly dated at the release) flip phone. Further, case 4, which is set before anything else in the series has a color video camera with sound, while the original Wright trilogy had all still pictures in black and white.
Don't forget the flat-screen televisions in the courthouse witness rooms that weren't there in the first 4 games.
Dark RepriseAmbassador Alba gains a darker, menacing version of the majestic Cohdopian national anthem as his new Leitmotif, which was previously used as the two ambassadors' leitmotif. The change is so dramatic, you really have to listen really, REALLY closely in order to realize that it's the same piece, only played in a minor key and smoothed over heavily.
Deceased Fall-Guy Gambit: Attempted by Quercus Alba, much to Lang's outrage. Also Calisto Yew was originally planning to make it look like Byrne Faraday and Mack Rell killed each other.
Demoted to Extra: Gumshoe in the second game, though it doesn't kick in until after the first case, when Loads and Loads of Characters start showing themselves. Tateyuki takes the role of Edgeworth's Lancer while still providing comic relief, while Yumihiko fills the clueless logic comedy Gumshoe used to provide, leaving him with less and less screentime as the game goes on. After Case 2, his only real role is to occasionally transfer evidence and make arrests. To drive it home, AAI 2 is also the first game in the series where he never gets to testify.
Edgeworth (taken aback) Of course not! That's bloody common sense!
Difficulty Spike: The last third of the final case of AAI has parts that are harder than almost anything else in the game. The last part of the third case is also unusually difficult.
In the sequal, the final villain of Case 3 is much harder to crack than anything beforehand. Later, Case 5's Big Bad jacks the regular penalty for presenting wrong evidence up from 10% to 30%, and a whopping 50% for the final testimony.
Disc One Final Boss: Shih-na/Calisto Yew in case five. From the start of the case it's quite obvious to the observant player that Shih-na is really Calisto Yew and likely the guilty party in the murder of Manny Coachen. When you finally corner her however, she says that while she's Calisto Yew, she really had nothing to do with Coachen's death. Moreover, the murder of Mask DeMasque II is still unresolved, making it obvious that there's still a long way to go in this case.
Dramatic Irony: The flashback cases are full of this from the player's point of view (and no doubt a "Funny Aneurysm" Moment from the point of view of the characters): for example, when von Karma tells Miles that he must become a famous prosecutor because "otherwise, it wouldn't be interesting", Miles seems to take this as reassurance, whereas any player who's followed the AA series will realize that this is some rather ominous foreshadowing of Case 4 in the first Ace Attorney game.
Don't forget Edgeworth and Von Karma's lamenting over the fact that Edgeworth would have to wait until a later case before he could conduct his first "perfect" case. In Trials & Tribulations Case 4 Edgeworth's first case ended prematurely, when Terry Fawles killed himself unwittingly due to Dahlia, resulting in a permanent mistrial.
Dude, Where's My Respect?: Edgeworth gets left out of the loop, pushed to the side, and is even in danger of losing his prosecutor position in the second game despite having brought down the smuggling ring in the first. Part of this is presuably to increase the challenge and force him to work on his own.
Enemy Rising Behind: In the third case, when Edgeworth drops off the ransom money in an amusement park's Haunted House dining room and steps into the hall, a slumped, seemingly-lifeless costume stands up and begins creeping up behind him.
Eureka Moment: Taken rather literally. Edgeworth cries this every time he performs a feat of logic.
More traditionally, about once per case Edgeworth hits a brick wall in his deductions, only for someone to say or do something mostly unrelated that causes this. He immediately flashes back to a number of previous hints, and the player is given several new pieces of logic to sort through and reach a conclusion.
Evil Laugh: Calisto Yew/Shih-na and Quercus Alba both do this when cornered. The latter is lampshaded.
Kay: Wow, you really know how to laugh at inappropriate moments!
Fan Nickname: Ace Attorney Investigations, before that title was bestowed, was called Perfect Prosecutor by the fandom (though early announcements in Nintendo Power magazine also used that name).
Gumshoe had been 'Gummy' to the fandom for years beforehand, but Kay makes the nickname canon.
Fantasy Counterpart Culture: Zheng Fa, an Asian country where Shi-Long Lang hails from, which at least seems more Chinese than Borginia is any of the traits it's said to have.
Cohdopia/Allebahst-and-Bahbahl are even more unclear. Fandom puts them anywhere from the Mediterranean to Eastern Europe.
A Father to His Men: Shi-Long Lang, to all 99 of them. And he takes it to ridiculous extremes by remembering the birthday of the younger brother of the wife of the younger brother of one of his officers. Taken to a more serious extreme later in the same case, where he takes a (fortunately non-fatal) bullet for Shih-na, who had immediately prior been revealed as a traitor and a mole planted by the smuggling ring Lang had been investigating. His reasoning? Because no matter what kind of backstabbing wench she really is, she's still his subordinate, and he's responsible for her.
When Lang's men are counting off, he gets mad at the MIB (his assistant) because he believes they are all number ones. Later, all 99 of them count off "1!", and at the end, the MIB says that probably all 99 of them are there.
Foregone Conclusion: Victory in the second game's third case seems shallow when you're already aware that it's the very case that results in the first stain on Manfred von Karma's record and subsequently his killing Gregory Edgeworth.
Integrated into the gameplay. The point of final, big confrontation of Gregory's segment is not proving who the killer is, but proving von Karma forged evidence.
Foreshadowing: In case five, upon pressing Shih-na's last statement, Franziska mentions never wanting to know what it's like to be falsely accused. And then who does Lang accuse towards the end of the case? Subverted in that she was falsely falsely accused as a ruse to investigate Allebahst once more
In case 3, after Lang mocks Edgeworth's investigative skills, Shih-na comments that she can barely contain her laughter in a deadpan tone. At first, it seems like a throwaway line, but it makes a lot of sense after you discover that Shih-na is actually the human laugh track known as Calisto Yew, and is indeed holding back her laughter, since she's talking to Edgey.
The shadow of the Yatagarasu is caused by not one object as Franziska assumed, but a combination of multiple things. So's the real deal.
Along those lines, the real kidnapper of Lance Amano is three people, including Lance Amano himself.
At the end of Case 2 of the second game, Regina comments that Souta is smarter than he looks. He most certainly is.
Found the Killer, Lost the Murderer: In AAI2, Edgeworth uncovers Shelly de Killer in case one but is unable to find out who hired him before he escapes. On top of that, it turns out he hadn't killed anyone that day anyways.
Framing Device: Case 4 is being discussed by Kay and Edgeworth to help Edgeworth recall how they came to cross paths originally during the conclusion of Case 3. Interesting since the first side of the frame is established in the epilogue of case 3 but the other side of it isn't seen until the end of case 4, which can push the Framing Device out of mind until case 4 wraps up, at which point the player remembers what was happening before the flashback started.
Frothy Mugs of Water: Hardboiled Bad Ass homicide detective Tyrell Badd's cigarette is eventually revealed to actually be a lollipop. He even keeps a mirror in his coat. However, it allows him "to keep an eye out on who is behind him". It's at least somewhat possible this is a Kojak reference. Who loves ya, Badd?
And in case 2, there's a man completely surrounded by variously shaped bottles, some of which are the right shape or color to hold something far stronger than wine, and he still makes reference to having a calming glass of 'grape juice'. I think it's safe to guess they're doing it on purpose now.
Actually in the original Japanese (for all the Ace Attorney games too), it was still grape juice. Go figure.
Edgeworth: I can't help but feel a bit sorry for those flowers you've gone through...
Lauren Paups: If they were me, then... *blush*
The Ghost: Phoenix Wright. He's referred to obliquely as "him", "that lawyer","a certain defense attorney", and even "the guy in the blue suit", but never by name (even though it's no big secret that Phoenix and Edgeworth and Larry are friends), and isn't seen onscreen except for in an easily missable easter egg.
Glasses Pull: Shih-na and Lang do this a lot. At some points, they seem to have put on sunglasses while offscreen for the sole purpose of doing this.
Guide Dang It: Though this game has much fewer Guide Dang Its than its predecessors, however one testimony in the third case is incredibly bizarre. Lang says that it was no coincidence that Lauren Paups and Oliver Deacon/Colin Devorae were reunited in the Amano house, and thus were able the two of them were able to plan the kidnapping as a father-daughter team. The correct answer is to prove that there were three kidnappers to disprove Lang's description of the kidnapping as a two-person job.
The Logic Chess battle against Bansai Ichiyanagi in Case 4 of AAI2 could be considered this. Among other things, it requires you to go back on previous lines of questioning to discover options that weren't there before.
Hoist by His Own Petard: In the final case , Quercus Alba shows you a wound he got defending himself to prove that Demasque2's murder was self-defense (even though the wound was really from a separate incident). Later on, when you find unknown blood at the murder scene, the fact that he showed you this wound is the only reason you can prove that it's possible that Alba bled at the scene and that the blood could be his.
Edgeworth even calls on it after he discovers that the Yatagarasu's Key was the weapon used to injure Alba. After all, it was Alba himself that left the blade on the victim's corpse, expecting it to be discovered.
Actually, the entire case seems to be an example of this. Alba plotted everything that happened at the embassy in advance and kicked it off by sending the Yatagarasu's card, which was supposed to pin the whole smuggling ring on Coachen and then conveniently kill him off to keep him from doing the same and then becoming the new kingpin.
Honor Before Reason: Lang takes a bullet in the leg for Shih-na and cites his responsibility to protect his subordinates, no matter who they might be.
Interface Spoiler: Franziska was called "von Karma" in the text boxes in the original trilogy, but it is now "Franziska" in this game. Manfred himself shows up in the flashback case.
Ironic Echo: Two near the end of AAI2: first, Shelly de Killer repeats Edgeworth's "It's game over" line after the final villain is taken down, and during the ending of the case, Mikagami mentions "the contradiction of law", which Shigaraki had spoken about earlier.
Jump Scare: Admit it, while "scare" may be rather strong of a word, Larry popping out of the fountain in the last case made you jump a bit.
Jurisdiction Friction: It is difficult to find a single case in which someone doesn't claim authority over the crime scene and demand that Edgeworth leave.
Karmic Death: Mack Rell is hired to kill someone. After he carries out the shooting, the person who hired him to do it kills him with the same gun.
Kleptomaniac Hero: Averted for once, it's "Jotted down in the Organizer" unless the object is clearly handed to you, and you can examine it in detail.
Leaning on the Fourth Wall: In case 5, Kay describes Edgeworth's "Logic" ability through the sound effect it makes when you trigger it.
In the same case, Quercus Alba compares the whole thing to a game (though that's more a product of his incredible arrogance), and Larry Butz does not like the introduction he gets in Edgeworth's internal monologue.
Leitmotif: If Edgeworth's "Objection!" theme sounds fitting for him, it should: it's Great Revival sped up and remixed.
Life Meter: The usual explanation for how this works is absent here, but Edgeworth can evidently deplete his lifemeter by thinking wrong, if the player screws up the logic segments. Screwups take him "further from the truth", as he explains it. Presumably depleting the whole thing causes Edgeworth to entirely lose the thread he was following and become disorganized, thus letting the culprit slip through his fingers.
Played with in Case 5 of the second game, which features a locked rooftop mystery. Lampshaded in this case.
Long Song, Short Scene: The truly amazing marching remix of the Blue Badger's theme is played exactly once, in a part of the intro to case three that will take a good minute less than the song to finish.
Marathon Villain: Quercus Alba, who will take great pride in shooting down Edgeworth's logical arguments by abusing his extraterritorial rights. This turns into an annoying struggle to find any way to convict him.
Mundane Made Awesome: Edgeworth manages to make stringing thoughts together to form conclusions a spectacle.
Musical Spoiler: Whenever you hear Confrontation: Presto playing, you know the person you're cross-examining is the killer. Played With in the sequel though, where Presto is often used for characters uninvolved with the murder as a major fake-out. Examples include Shuuji Orinaka in Case 2, and Shimon in Case 5.
Mysterious Waif: The "Mysterious Girl" brought to Edgeworth's office in Case 4 of the sequel. She is very quickly revealed to be an amnesiac Kay Faraday.
Obstructive Bureaucrat: Subverted. The hardest part of pursuing the main villain is a government-sanctioned reason up until Shi-Long Lang and Interpol manage to convince his home country to remove that protection.
Hakari Mikagami's theme in the sequel features it heavily, presumably to reinforce her "holy" appearance.
Only a Flesh Wound: Lang gets shot in the leg partway through case five. This does not seem to impede him at all.
Origins Episode: Remember the trial where Manfred von Karma got his first penalty? The IS-7 incident is what the trial was about.
Passing the Torch / Take Up My Sword: Kay Faraday does this. She finds her father's diary and believes him to be the Yatagarasu, taking on the title and mission of Stealing Truth for herself. She's...not quite as effective.
Schizo Tech: It is a bit odd to see a flat-screen television in the courthouse defendant lobbies hooked up to VCR players, though in fairness it is there for security tapes and many places still use old school tapes for security.
In nearly every situation Edgeworth's inner monologue would make it clear even to Gumshoe what you're supposed to do next. When you press the testimony for which you must present evidence, Edgeworth will think- and sometimes say out loud- that there is something suspicious about that part, and if you reach the end of the testimony, Edgeworth will make some commentary on the testimony, providing a hint as to the evidence that must be presented (In Case 5, Edgeworth will say once that the relevant evidence was hidden away, and is referring to the wire inside the clock in Babahl). This is probably because many fans mentioned they liked the way he thinks during his small turn as defense attorney in the third game.
Penalties in the game always take off 10% of your life bar, thus you have 10 chances before a game over, which is pretty easy going compared to the roller coaster of penalties amounts in the previous games. The penalties are beefed up to 20% when Alba gets annoyed at one point by your constant time wasting with your questioning so you only have 5 chances left. Although in the sequel's final case, the final boss Souta Sarushiro beefs up the penalty to 50%.
Serendipity Writes The Plot: Edgeworth's flashback to the DL-6 incident in the 4th case is masked heavily and bordered by a "cloudy" filter (in addition to the series standard of merely putting flashbacks in black and white) to hide the fact that it is reused from the original GBA game (and thus has a 240 × 160 resolution with a 15 bit color depth on a 256 x 192 screen with 18 bit color depth) while Investigations is otherwise free of such sprite reuse (contrast Apollo Justice, where such reuse is very blatant when it occurs).
Soundtrack Dissonance: While Calisto Yew's theme seems like the appropriate track to be played after Shih-na's Reveal, the upbeat theme doesn't mesh well with the fact that she was Laughing Mad not even a second ago.
It seemed odd that the heroic and noble Great Revival heralds the arrival of Manfred von Karma. Out of a fairy cake house, nonetheless.
Staring Contest: The fourth case reveals that Edgeworth once won a glaring contest against his own reflection. Somehow.
Stealth Pun: The Yatagarasu's Key is an object from the Codophian Embassy stolen by the Yatagarasu. The national symbol of Codophia is a butterfly and butterfly symbols emblazon the handle of the artifact. The secret of the key is the fact it has two ends, the other of which can be used as a knife. It changes form by the handles swinging around to cover the currently exposed side, hence it is a butterfly knife.
Edgeworth: I suppose this is the Pink Badger? But since it has the same design, doesn't it seem forced to call this one a female? Kay: You think so? I mean, just look at how long her eyelashes are! Edgeworth: That's the only difference. Kay: And the fact that she's pink. Edgeworth: Yes, and? Kay: And her lips are red! See, lipstick! Edgeworth: (thinking to himself) What? She has nothing to say about the giant pink ribbon, or is that too obvious?
That One Case: KG-8. The sequel features IS-7, the case where Gregory caused Manfred von Karma to get a penalty. Then there's also SS-5, the case where Lang's reputation got tarnished.
Thief Bag: Kay, befitting a Great Thief such as herself (in her mind, anyway), wears a pink-and-white-swirl variation on her shirt. If you look closely you can see the same pattern on her father's bandanna, an interesting piece of foreshadowing.
To Be Lawful or Good: Edgeworth's major decision in the last case of the first game, over whether to use a piece of illegal evidence to find the truth, boils down to this. He uses it. In the second game, he's faced with a decision over whether to sacrifice his badge to continue to defend Kay Faraday, and he does.
Turn In Your Badge: Edgeworth in the sequel decides to surrender it rather than give up on defending Kay. He gets it back in the ending, though.
Ultimate Job Security: Jacques Portsman. It's revealed after his arrest that he managed to keep his job despite being under strong suspicion of misconduct and corruption.
What Would X Do?: Edgeworth does this twice. Although the "X" is never named, Edgeworth is obviously refering to Phoenix.
Why Did It Have to Be Quakes?: Edgeworth apparently fears earthquakes enough so that the turbulence on an airplane produces a close enough effect that it triggers his phobia and he passes out.
You Keep Using That Word: At one point, Prosecutor Portsman claims that there is a "mountain of evidence" pointing away from him. If you press him on this point, however, it turns out his "mountain of evidence" isn't really evidence at all; simply a claim regarding his supposed lack of motive. Edgeworth hangs a lampshade on this:
Edgeworth: ...Might I recommend that you review what the word "evidence" means.
Especially bad because Portsman should know what the word means; he is a prosecutor, after all.