The Road to Cydonia is a crossover fan fiction between Ranma ½ and X-COM: UFO Defense written by Cap'n Chryssalid. In it, Ryouga and Akari are abducted by aliens, who discover the existence of the Nerima Wrecking Crew while probing Ryouga's mind. After killing Akari and mind raping Ryouga, the aliens follow him to Nerima, where they attempt to abduct the rest of the crew. While the aliens succeed in capturing Cologne, Ranma and Ryouga manage to free the Tendos and take over the ship that was abducting them. After crash-landing it in South America, Ranma and Ryouga are approached by X-COM, an organization dedicated to fighting the alien threat. Ryouga, eager to seek revenge on the aliens, immediately decides to join, and Ranma ends up following him into the organization. Deciding that they'll need allies, they immediately seek to recruit the rest of the Nerima Wrecking Crew, and the Juliet and India squads are formed. The story then follows Ranma, Ryouga, Shampoo, Mousse, Ryu, Ukyou, Konatsu, and Tatewaki as they battle against the alien threat as members of X-COM.There is also Reflections Lost On A Dark Road, a crossover fic that takes place after The Road To Cydonia, written by Lathis and Cap'n Chryssalid.The Road To Cydonia can be read here or here.
Affably Evil: Due to being brainwashed and crazy Tetsuya was very much this.
Ape Shall Never Kill Ape: Because all aliens are hardwired into the Mind, they never turn on each other. The sole exception being an incident in which a ship of aliens fresh from another dimension apparently killed each other. Micronoids. X-COM is still trying to figure that one out.
Artistic License - Military: The Ranma portrayed “WOULD NOT” be trusted to command anything, let alone a combat unit. He has demonstrated absolutely no leadership potential, allowed those under his 'supposed' command to behave as 'they' saw fit, and left 'discipline' up to others to perform upon the members of 'his' squad.
With all of the training Ranma and Ryouga have been receiving, and NONE of it looked to be on 'How to Lead'. Good leaders are MADE, they are not born (as Ryouga seems to be portrayed).
Batman Gambit: The Visitor’s pulled off a huge one during the Twilight of the Amazons story arc involving chemical weaponry and Jusenkyo. Luckily it was foiled in the end.
Battle Aura: All of the Juliet and India squads at one point or another, but special mention goes to Ryouga during his first confrontation with an Etherial. To protect himself from its psychic abilities, he engulfs himself in his battle aura at full power. It's compared to "lighting yourself on fire to keep from freezing to death."
Beauty Is Never Tarnished: Ranma was struck in the face with a burning piece of metal, and while at first it was mentioned that once it heals it would leave a nasty car. That scar was never mentioned again.
Big Brother Is Employing You: Occasionally a character will muse on the unpleasant implications of what X-COM is doing, and its abuse of ordinary people's rights. Then they'll decide the end justifies the means and carry on with whatever distasteful task they were going to do.
Brainwashed: The trenchards that are made by converting a human. The duplicates may also count, since severing their connection to the mind causes them to act like their original selves pre-abduction.
Cloud Cuckoolander: Mitsuko Hibiki is a perfect example. She once demanded that Mousse prove that he was Ryoga’s friend by asking what his favorite color was, only to realize that she didn’t know it either.
Combat Pragmatist: The greatest tenet to the Anything Goes School, even if their opponent is more skilled they will always find some way to overcome them, some way to cheat or fool the. Some way to use words or trickery to get what they wanted
It is also a weapon the Trencard’s seem to utilize quite a bit a well.
It’s also a big part of Mousse’s fighting style. Ayabe even forced him to unleash the Saotome Ultimate Technique
Dangerously Genre Savvy: Ranma, why would the aliens attack the amazon village but leave so many survivors, why indeed.
Deus Angst Machina: Ryouga. Girlfriend killed right in front of him after being cut up for 20 minutes? Check. Father turned into an evil alien hybrid, forced to fight him, then required to be kept locked up to avoid attacking them? Check. Months worth of shameful memories erased, then returned en mass? Check. Dead girlfriend revived as an alien hybrid no longer under control of the aliens, but dying, requests to be allowed to die, forcing him to prevent the operation that would save her life at the cost of her remaining humanity? Check. New recruits enable the aforementioned operation to succeed anyway, returning her to the control of the aliens? Formerly dead girlfriend now psychically attacking him in his dreams? Check.
Dirty Coward: Genma in true form ran away while the alien abducted his friends and family.
Dramatic Irony: The only reason Ranma was caught so easily was because he’ such a sound sleep. It was a weakness Genma had never quite managed to weed out of his son. However the reason it’s so bad is because of Genma’s attempts to get rid of it to the point where Ranma can dodge in his sleep.
Fountain of Youth: The aliens appear to do this to Cologne. In actuality, it's a clone.
Guile Hero: Ranma has repeatedly shown himself to be this combines this with Action Hero. While he prefers to kick ass he can utilize Batman Gambit and Indy Ploy with the best of them. Even outshining the Visitors at times.
Genre Savvy: Despite not practicing for years Koichi Ayabe is an extremely dangerous opponent because of this.
Good Cop/Bad Cop: Ranma and Ryoga interrogation of Doctor Iosef Aliyev ended up falling into this.
Laser-Guided Amnesia: Curing a Jusenkyo curse removes the victim of all the memories they acquired while in their cursed form.
Lethal Chef: Akane, though has been working to improve that since being forced to eat her own cooking.
Lonely at the Top: Cologne has one goal growing up to become the strongest, to become not just an Elder, but the greatest among them. It was only after she achieved that goal that she realized all she gave up to get it.
Overshadowed by Awesome: Most of the X-COM agents are at peak levels of human fitness, and are in the best physical condition they have ever been in. Nevertheless, they are completely overshadowed by the Nerima Wrecking Crew.
Reality Ensues: Nabiki's characterization. In fanfiction, Nabiki tends to be portrayed as the most manipulative character; a lot of the traits usually ascribed to Nabiki in fan fiction (such as spying on people to find out their secrets, being manipulative, setting up elaborate plans, knowing what is going on, etc.) actually belong to Ranma. In reality Nabiki is opportunistic and thinks only of her immediate gain. She does not factor in the possible consequences of her actions. This is shown on multiple occasions such as her taking picture of Ranma when she knew nothing about how Ranma might retaliate when he found out, not taking into account how dangerous it is to be Ranma's fiancée (which nearly got her killed), or what would happen to her or her family if she lost the 10 yen battle. Now what would happen when Nabiki is taken away from not only her more thick skinned victims, who don’t just take her activities in stride, but can’t simply kill her with their bare hands.
Refuge in Audacity: Mitsuko’s status as a Cloud Cuckoolander means she employs this often. A common strategy for when she’s stopped by the cops for her actions is to say they’re fakes and determines if it’s true or not based on their reaction.
Shut Up, Hannibal!: Ranma gave a chilling one to Doctor Iosef Aliyev for trying to justify genocide in the name of the aliens.
Ranma: Doctor Aliyev, No matter what they did for us in the past, there's no excusing what they're doing in the present. There's no excusing what you've done, either, Doctor, which is why I want to make sure you know what's going to happen next. What we did back there was just the tip of the iceberg. You think this was an interrogation? The real one hasn't even started yet! We're going to take you to a deep, dark hole in the Earth somewhere, and when you get there, Doctor. May that God you mentioned have mercy on your soul.
Too Dumb to Live: Sink is a particularly tragic example. Shampoo sent her a detailed letter about the dangers the village was in, what happened to Cologne, she event sent them a few strong unmarried men. Despite this Sink still chose to trust Cologne despite her giving her a cell phone. She quickly went mad from the revelation.
Unstoppable Rage: Ryouga's rage is really unstoppable. After the aliens kill Akari, it doesn't completely go away for a significant portion of the story.
The Worf Effect: Ryoga’s battle against Elder Pill is an example of this. While her Venom infected state allows her to stay upright and conscious despite fatal injuries, her clouded mind means that he can only fight through sheer instinct. Ryoga himself acknowledged this
The battle between Ranma and Ryu wa this as well as Ranma could use only the moves genma developed no any of his own revisions