From Tokyopop:

Kentaro and Takeshi are two freshmen who are periodically called upon to transform themselves into monster-battling superheroes, complete with capes and armor... but there's much more than meets the eye...

A mysterious monster called the High Beast, has taken control of the regions of Eurasia and Africa. Japan has cut off from the mainland to protect itself from this threat. The daughter of a legendary mahjong player discovers that monsters attack whenever a mahjong piece is hit across the board. This allows humans to be separated from the battle and for mahjong players to effectively combat the monsters with robots controlled through mahjong moves.

Latest manga in the Zoids franchine.

In A.G. 101 (the 101st year of the Advanced Generation calendar) a mysterious entity known only as “UE”, or “unknown enemy”, attacks and destroys the space colony Angel. This brutal attack becomes infamous as “The Day the Angel Fell”, and marks the beginning of humanity's war for survival. The series begins in A.G. 108 when the UE attack the space colony Ovan, where Flit Asuno now lives after he escaped colony Angel before its destruction. Flit's mother shortly before she is killed by the UE, she gives her son an object called “AGE Device”. Within it he discovers the blueprints for a powerful weapon from the past—the ancient messiah named “Gundam”.

From these blueprints, Flit spends the next several years studying engineering at an Earth Federation base on the Nora space colony and designing the Gundam AGE-1. Seven years later, in A.G. 115, Flit completes the Gundam AGE-1 Normal, just as the UE attack Nora, and make use of it to aid the crew of Federation's battleship “Diva” in evacuating the colony's citizens before it is destroyed. Determined to bring the battle to the U.E. for destroying his home twice, Flit agrees to serve at Diva's mobile suit squad piloting the Gundam. After obtaining enough data and military power to establish a course of action, the crew of Diva and their allies launch a successful attack that destroyed the U.E.'s secret fortress in the Ambat asteroid. There they learn that the U.E. are actually the descendants of a supposedly failed human mission sent to colonize Mars, left for dead by the Earth Federation, who formed their own nation on the red planet called Veigan.

Includes 3 stories:
1. Five Part side story by Mitsuteru Yokoyama that ran from November 1967 to March 1968 in Shogakukan Comics.
2. “New Giant Robo” manga made in July 1968 by one of Yokoyama's assistants for Second Grade Elementary Magazine.
3. “Fun Kindergarten” is one shot made in July 1972.

[From OneManga]

Latest Arc/Saga in the Getter Robo series

An old Hayato (the original Getter 2 pilot) leads the Saotome Research Facility, which has developed the Getter Robo Hien to combat a new force which threatens the Earth: large plantlike monsters.

Full remake of the original Getter Robo series.Original version:> Getter Robo

Monju is a prototype of a line of anti-crime police robots, and he was an elite, celebrated member of the force. Now, to his dismay, he's been re-assigned out in the country, working alongside Yamagashi Junpei, a young cop who is mostly concerned with sexy women and his possibly thinning hair. Monju's combat capabilities seem unnecessary for a small town with its small crimes, and the people don't initially welcome him. Monju will have to find his place in this new situation, and win over the people around him with his skill for protecting the innocent. The first major case he must solve is catching an underwear thief, who Monju suspects might actually be the perverted Junpei. Will the two of them be able to catch the thief and clear Junpei's name?

In near future, Humanity discovered incredible ore with unlimited energy, Iliosdaite. In ten years since its discovery that core energy became an alternate fuel supporting the whole world. But. a lot of Monsters and evil organizations were eager to get their hands on Iliosdaite. That's when a Hero rose up to protect the Peace. His name was..... Love Fighter Shuravan.

School Shock takes place in the year 2017, and a new generation arms race has begun. Shun Hao Xuan is a normal teenager that plans on simply living with no real goals. That all changes one day when he’s taken hostage by insurgents. He is the first one chosen to be executed, but he is miraculously saved by a beautiful girl in strange battle armor. What will this miraculous encounter behold..??

In year 2017, a new generation of arms race is emerging. “Vanguards” are the new type of weapons being used on the battlefield. Liu Li is a Vanguard that is about to retire. In her last 380 days she receives her final mission…

After alien technology falls to Earth and humankind uses it to develop giant robots with applications in industry and security, Japan and other countries create academies to train students to use them. An aspiring robot pilot, Maki Natsuhito, tries his best but his prospects in the field look dismal, not helped by the fact that his crush, Asato Kana, is one of the school's aces.

Everything changes with the arrival of Fishes, a mysterious smiling girl who offers Maki the power to fight a new alien threat, but who exacts a heavy price on the exchange. Now in possession of abilities others could only dream of, Maki will find that the idea of a hero is very different from practice.

Official 4-koma manga for Darling in the FranXX.

The plot is about Japanese teen Yamato Hibino, who is sucked through a time warp into the past, where the dinosaur army of the Dragonia Empire threatens the world, and Queen Aira of Mu needs Yamato to help her fight back with the aid of the stone-made guardian God Mazinger, which looks suspiciously like a giant robot.

Masaki Kenshi was taken from his home and was sent with a combat suit to assassinate the young queen Rashara. His mission was unsuccessful and he was captured and would have been typically executed for such a crime. However, Rashara, seeing that Kenshi was forced to carry out such a mission, pardons his life. She allows him to stay at the pilot academy and he becomes friends with many of the women surrounding Rashara. However, there are deep secrets that may threaten the comfortable life that Kenshi is living right now.

Welcome to the future of vast bio-constructed cities with crime so severe that the cops drive tanks! For top tank-cop Leona Ozaki (and her trusty tank, Bonaparte), the day-to-day is a tall order already, but when the villainous and sexy (and super-powered androids!) Puma sisters become duly deputized officers of the law and are assigned to "help" Leona catch Urushi-Maru, "The Skyscraper Pirate," things are bound to get out of hand, especially in the midst of a full-on, tank-on-tank streetfight between Leona and a corrupt arms manufacturer bent on getting the city's police tank contract!

In U.C. 0093, Char Aznable returns as leader of Neo Zeon, and is determined to drop the asteroid base Axis on Earth. Opposing him is the task-force Londo Bell, led by Amuro Ray and his Gundam. The final battle will take place over the Earth Sphere.

High above Farmless City, citizens are stunned by the sudden appearance of two floating figures. Are they human boys, monolithic robots, or something much more strange? As the battle ensues between them, destruction and devastation falls on the hapless city. One figure is Vice, and seems to be as evil as his name implies. The other is Ultimo, intent on trying to stop Vice from wreaking more havoc. But who are Vice and Ultimo really? Where did they come from? A new mystery begins with the fate of the world possibly hanging in the balance!

Stand Alone Complex takes place in the year 2030, in the fictional Japanese city of New Port. The story follows the members of Public Security Section 9, a special-operations task-force made up of former military officers and police detectives. The manga presents individual cases that Section 9 investigates, along with an ongoing, more serious investigation into the serial killer and hacker known only as “The Laughing Man.”

Spin-off set in the same world as Eureka Seven AO, following the adventures of heroine Yuna Maltan.

Manga sequel to the Eureka Seven anime series. The story centers around a boy named Ao who "sets 'destiny' in motion again when he holds the 'power'".