Terra Formars

During the 21st century, humanity attempted to colonize Mars by sending two species which could endure the harsh environment of the planet to terraform it—algae and cockroaches. However, they did not anticipate the species' remarkable ability to adapt. Now in the 26th century, a lethal disease known as the Alien Engine Virus has arrived on Earth, and the cure is suspected to be found only on Mars. The problem is, Mars in the present is overrun by creatures known as "Terraformars," incredibly powerful and intelligent humanoid cockroaches that mutated from those originally sent to the planet. The Annex I team, consisting of a hundred men and women genetically enhanced with characteristics of powerful organisms from earth, has been sent to Mars on a mission to find the cause of the Alien Engine Virus and to help cure humanity—signalling the start of the crew's fight for survival.

Terra Formars: Bugs 2-hen

Adaptation of the Bugs 2 arc of the manga. In the late 26th century, overpopulation on Earth is reaching the breaking point, and humanity must find new frontiers. The terraforming of Mars has taken centuries but is now complete. The colonization of Mars by humanity is an epoch-making event, but an unintended side effect of the terraforming process unleashes a horror no one could ever have imagined. After humanity's first manned mission to the Red Planet was lost, a second expedition arrives. The explorers prepare to exterminate the cockroaches that were used to transform the Martian environment. They are shocked to discover that the insects have mutated into giant, aggressive humanoids with one overriding goal — exterminate the humans! But this crew of explorers has each undergone the Bugs Procedure, terrifying experimental surgery designed to make them more than human... (Source: Viz Media)

JUNI TAISEN：ZODIAC WAR

The record of the bloody battle between the twelve proud warriors— The 12th Twelve Tournament that gets held every twelve years… Twelve brave warriors who bear the names of the signs of the zodiac fight each other for the lives and souls. The participants are twelve very strange warriors: “Rat,” “Ox,” “Tiger,” “Rabbit,” “Dragon,” “Snake,” “Horse,” “Goat,” Monkey,” “Rooster,” “Dog,” and “Pig.” The victor of this tournament gets to have one wish granted, whatever the wish may be. The one wish they want granted— Who will be the final survivor? Whose tears will flow on the bloody battlefield filled with conspiracy and murder? A soul-shaking battle royale is about to begin. (Source: Crunchyroll)

BTOOOM!

In the blink of the mind's eye, Ryouta Sakamoto suddenly finds himself transported from playing the hit Btoom! video game to being stranded on a mysterious island, equipped with a day's worth of provisions, a bag of bombs, a strange crystal embedded in his left hand and a huge gaping hole in his memory. But it doesn't take long to figure out what's going on, especially after the first person Ryouta meets tries to kill him. Someone is attempting to recreate the ultra-violent Btoom! game in real life, and the island has been filled with an army of other unwilling players, each armed with one of the multiple variants of explosive weapons called BIM. Fortunately, Ryouta's an ace Btoom! player, but this insane version of the game has no reset switch or second lives, and there's only one way off the island: kill seven other people before they can kill you! Can Ryouta repurpose his game based skills fast enough to survive? (Source: Sentai Filmworks)

Terra Formars: Revenge

The second season of Terra Formars</i>. In Terra Formars Revenge, the crew members of the Annex I continue to fight against Terraformars—the large humanoid cockroaches that evolved from the ones sent to Mars centuries ago. However, far from discovering the cure for the lethal Alien Engine Virus that has been plaguing Earth, the Annex I team have learned that some squadrons have agendas from their own countries. Now, the squadrons must not only fight against the Terraformars for their survival, but also each other in the never-ending battle for international dominance.

Terra Formars: Revenge OVA

Adaptation of the Earth arc events happening in volume 21 and 22 of the manga.

Battle Vixens: Ikki Tousen

Seven schools are constantly 'at war' with each other, and the students within - both male and female - have become skilled fighters and constantly battle with rival schools. Their lives and fates are guided by strange jewels that contain the spirits and destinies of warriors from the Sangokushi period. One girl, Sonsaku Hakufu, has recently moved to Japan and is apparently destined to unite the schools as her counterpart united seven countries long ago. But, like all heroes, there is a darker side to her fate, and as always there is a constant struggle by those around her to break the chains of their own destinies and make their own lives. (Source: Anime News Network)