From Mobots: Renton is a 14-year-old boy who occasionally helps out his grandfather as a mechanic. But his feelings of dissatisfaction and frustration grows as his mundane and routine work clouds his visions for his future and he dreams of flying around the world. It isn't until one day, a large human-like mech, a LFO (Light Finding Operation), falls from the sky in front of Renton and appearing from the depths of the machine is a beautiful young girl named Eureka. And as she asks the dumbfounded Renton for repairs, the two will embark upon a fantastic journey into the unknown.

From moetron Total Eclipse is set in the same world as MuvLuv Alternative, at Alaska's Yukon base, test site 18, where first-class staff from all over the world regardless of country gather to work on new Tactical Surface Fighters. The main characters are engineers and pilots and it features many TSFs that failed to show up in Alternative.

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Universal Century 0153. During the war between the League Militaire and the Zanscare Empire, Uso Ewin while alone on a reconnaissance mission happens upon the Zanscare Empire's Newtype squad, and finds himself blind-slighted by a Zoloat, and comes under attack by the mysterious Mobile Armor Zong. However he finds himself rescued by an old junk dealer Grey Stoke. The pilot of the Zolat, who was also rescued alongside Uso is revealed to be a young girl named Kamui Gian.> Part of the Gundam series( http://www.batoto.net/search?name=Gundam&name_cond=c&genres=;e9&genre_cond=and&p=2 )

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It's mainly about two different armies battling each other out with their mechas.

Universal Century 0079. The Battle of Solomon rages and Anavel Gato strikes the Earth Federation Forces with terrible force.> Part of the Gundam series( http://www.batoto.net/search?name=Gundam&name_cond=c&genres=;e9&genre_cond=and&p=2 )

Trouble always seems to follow the beautiful and sassy, Kaname Chidori. Though she is only a high-school student, Kaname is constantly the target of terrorism. Lucky for her though, the dreamy Sosuke, an undercover agent from Mithril, is one step behind her, ready to protect her at any cost. But will he be able to save her from harm every time she is in trouble?

Sosuke has finally lost his mind - and his memory! Rehashing his previous exploits will keep Kaname busy, but it doesn't take long for the military mind of this soldier to bounce back with a bang - literally! He's locked, loaded, and back to his old self by first period, as bombs and bullets grace the halls of high school!

Following the Tuatha de Danaan's seajacking incident, things are back to normal at Jindai High School in Tokyo, or as normal as they get with Sousuke guarding Kaname. After finding out who betrayed Mithril and caused the seajacking incident, Kurz and Mao are sent on a top secret mission in order to capture and bring the traitor back. However, Sousuke and Kaname's lives are about to change when they meet Leonard Testarossa, a high ranking member of a mysterious group named Amalgam. After their meeting, Leonard warns her that he would do anything to recruit her even if it means war in the streets of Tokyo.

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The 1998 official Xenogears 4koma manga.

In the distant future, in a distant corner of Siberia, people live in domed cities called Domepolises. These are the primary human living spaces on Earth, which became uninhabitable years ago from environmental destruction. Now, parts of the Earth are becoming habitable again. Large portions of the Domepolises are breaking off to escape the powers that control the domes and trade. Gainer Sanga, video game champ on his 200th victory, becomes an unwilling helper in his hometown`s Exodus when he is wrongfully arrested by the Siberian Railway. He pilots a giant mecha which he dubs `King Gainer` after his own video game handle. He is challenged to fight other Overmen as Yapan tries to escape across Siberia. - The manga is an adaption of the anime that goes by the same name and which was thought up and directed by Yoshiyuki Tomino. The manga is drawn by one of the series' character designers, Yoshihiro Nakamura, and Tomino is credited as writer. Nakamura is (in my opinion) a rather talented artist, with a good sense for scenery and setting. He has a knack for adapting the great designs originally done by Kenichi Yoshida and manages to bring these characters alive. Taken from Gainer and anidb

From Del Rey: In the near-future on planet Earth, a world gone mad where never-ending war is a fact of life, Kirio is the coolest kid at school. Up in the sky, a giant robot is fighting a fleet of gunships, but the brilliant and distant Kirio is far from fazed - until the battling 'bot makes an unexpected landing in Kirio's front yard and rings the bell. But the worst threat for Kirio could be what stands on the other side of the door: an alien invader robot with the face of an adorable girl!

A collection of six science fiction stories. • 2001 Nights Spin-Off - In the Ocean of the Night • Starship Adventure Star Field Arthurian World • Starship Adventure Star Field The Red Star of Scorpio • Vessel of Wrath • Space Fantasy • Phobos and Deimos • Planet of Fog

From Cireus-Anime website: Saiga Junki is a normal high school boy who tends to be a little apathetic in general but who does manage to get better than average grades. When his archaeologist father, who went to investigate some ruins, is found dead, the family travels to the excavation site where Junki meets a mysterious stranger who gives him a ‘gift’: an ancient artifact that his father left for him …

In a post-apocalyptic world, a girl leaves her village to find her missing childhood friend, and save her dying world. Her companion in her quest is a machine named "Edison Stein," and he can draw blueprints for magnificent machines. What will await them in "The world outside"?

It's been 6 months since the L5 Campaign, the conflict that pitted humanity vs aliens with the whole earth sphere at stake; even thought at that time humanity joined forces as a whole and fought valiantly for it's survival, now that the true threat is gone the remains from old conflicts that have kept discord among people from even before the aliens arrived have started to resurface and thus the fight is far from over.... The ATX Team, one of teams that probed pivotal in the L5 Campaign have been "living their usual" being at the mercy of the chain of command and taking part in cleaning up the remainders from the DC war---- but little do they know that again some extraordinary events are brewing up; with the arrival of a strange lady named Lamia Loveless, who seeks help from the team and seems to know more about them than what she should, the path has been set, headed towards a chain of events that might bring forth an even greater conflict that the one from 6 months ago.... Can Kyosuke Nanbu and his team break through all of the opposing forces, yet again?

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From MangaHelpers: The weapons of the future, Metal Vessels, are being developed by different companies. One company, Sigma, has created a vessel that is controlled by two people-- a telepath and an anti-telepath. These two people are the teenage girl telepath, Yuiri, and her friend Io, an anti-telepath. They use their vessel mostly in demonstrations, such as competitive exhibitions with rival company Ciel's newest model. While these vessels may seem to be the way of the future, the technology can also be very dangerous. A serial murderer is on the loose, who chooses targets through a website, and the police are beginning to suspect that the killer is actually using a Metal Vessel... [tethysdust]

From Anime News Network: The story begins in the distant future in the far reaches of the galaxy. The Human Galactic Alliance has been constantly fighting for its survival against a grotesque race of beings called "Hidiaazu." During an intense battle, the young lieutenant Redo and his humanoid mobile weapon Chamber are swallowed up into a distortion of time and space. Waking from his artificially induced hibernation, Redo realizes that he has arrived on Earth, the planet on the lost frontier. On this planet that was completely flooded by the seas, people live in fleets of giant ships, salvaging relics from the seas' depths in order to survive. Redo arrives on one of the fleets called Gargantia. With no knowledge of the planet's history or culture, he is forced to live alongside Amy, a 15-year-old girl who serves as a messenger aboard the Gargantia fleet. To Redo, who has lived a life where he knows nothing but fighting, these days of peace continue to surprise him.

SIN takes place in a post apocalyptic future derived from a universe very similar to ours. The inevitable lack of resources to sustain humanity on Earth had split the world into two warring factions, the United Nations (U.N.) and the New Earth's Alliance. (N.E.A.). After years of unnecessary conflict and technological advancement in weaponry, both sides eagerly stumbled into peace to avoid extinction. Now under the rule of the newly formed United Earth's Federation (U.E.F.) space has become the last hope for the human race. However, with resources more scarce than ever the clock is ticking. How do we decide who's privileged to live and who's not? What happens to those of us left behind? A world now loosely controlled by a single totalitarian government, overrun by gangs, private military groups, freedom fighters, and death; Life seems to provide no more than a fruitless future. Regardless, there are still those of us that fight, we fight each other, we fight the system, we fight for our loved ones... whatever the reason, we battle for answers.

The story begins with a scientist, Dr. Yorkshire Bell, noting that dinosaurs flourished and became extinct when they advanced beyond their ability to adapt to change. Giant mammals, such as the saber-toothed tiger and the mammoth, came and went the same way

In the Mazinger Otome series:V.1 - Mazinger OtomeV.2 - Mazinger Otome Taisen