GuessAnime.

1. Cowboy Bebop

In the year 2071, humanity has colonized several of the planets and moons of the solar system leaving the now uninhabitable surface of planet Earth behind. The Inter Solar System Police attempts to keep peace in the galaxy, aided in part by outlaw bounty hunters, referred to as "Cowboys". The ragtag team aboard the spaceship Bebop are two such individuals.

Mellow and carefree Spike Spiegel is balanced by his boisterous, pragmatic partner Jet Black as the pair makes a living chasing bounties and collecting rewards. Thrown off course by the addition of new members that they meet in their travels—Ein, a genetically engineered, highly intelligent Welsh Corgi; femme fatale Faye Valentine, an enigmatic trickster with memory loss; and the strange computer whiz kid Edward Wong—the crew embarks on thrilling adventures that unravel each member's dark and mysterious past little by little.

Well-balanced with high density action and light-hearted comedy, Cowboy Bebop is a space Western classic and an homage to the smooth and improvised music it is named after.

Cowboy Bebop is finished and has 26 Episodes. It is also Known as: カウボーイビバップ, COWBOY BEBOP

2. Highschool of the Dead

It happened suddenly: The dead began to rise and Japan was thrown into total chaos. As these monsters begin terrorizing a high school, Takashi Kimuro is forced to kill his best friend when he gets bitten and joins the ranks of the walking dead. Vowing to protect Rei Miyamoto, the girlfriend of the man he just executed, they narrowly escape their death trap of a school, only to be greeted with a society that has already fallen.

Soon, Takashi and Rei band together with other students on a journey to find their family members and uncover what caused this overwhelming pandemic. Joining them is Saeko Busujima, the beautiful president of the Kendo Club; Kouta Hirano, an otaku with a fetish for firearms; Saya Takagi, the daughter of an influential politician; and Shizuka Marikawa, their hot school nurse. But will the combined strength of these individuals be enough to conquer this undead apocalypse?

High School of the Dead is finished and has 12 Episodes. It is also Known as: 学園黙示録 HIGHSCHOOL OF THE DEAD, Gakuen Mokushiroku: Highschool of the Dead, HOTD, HSOTD

3. Elfen Lied

Lucy is a special breed of human referred to as "Diclonius," born with a short pair of horns and invisible telekinetic hands that lands her as a victim of inhumane scientific experimentation by the government. However, once circumstances present her an opportunity to escape, Lucy, corrupted by the confinement and torture, unleashes a torrent of bloodshed as she escapes her captors.

During her breakout, she receives a crippling head injury that leaves her with a split personality: someone with the mentality of a harmless child possessing limited speech capacity. In this state of instability, she stumbles upon two college students, Kouta and his cousin Yuka, who unknowingly take an injured fugitive into their care, unaware of her murderous tendencies. This act of kindness will change their lives, as they soon find themselves dragged into the shadowy world of government secrecy and conspiracy.

Elfen Lied is finished and has 13 Episodes. It is also Known as: エルフェンリート, Elfen Song, Elfic Song

4. Angel Beats!

Otonashi awakens only to learn he is dead. A rifle-toting girl named Yuri explains that they are in the afterlife, and Otonashi realizes the only thing he can remember about himself is his name. Yuri tells him that she leads the Shinda Sekai Sensen and wages war against a girl named Tenshi. Unable to believe Yuri's claims that Tenshi is evil, Otonashi attempts to speak with her, but the encounter doesn't go as he intended.

Otonashi decides to join the SSS and battle Tenshi, but he finds himself oddly drawn to her. While trying to regain his memories and understand Tenshi, he gradually unravels the mysteries of the afterlife.

Angel Beats! is finished and has 13 Episodes. It is also Known as: Angel Beats!（エンジェルビーツ）, Angel Beats!

5. Lycoris Recoil

“LycoReco” is a café with a traditional Japanese twist located in downtown Tokyo. But the delicious coffee and sugary sweets are not the only orders this café takes! From delivering packages short distances, to pick-ups and drop-offs on the lonely streets at night, to zombies and giant monster extermination…?! Whatever your problem, we're here to help! We will solve any kind of "trouble" you may have!

Waiting for you are the ever-smiling poster-girl and the cool, serious newcomer. A petite girl who never wants to work and a young woman approaching thirty who wants to get married. And the manager is a nice guy who’s obsessed with Japan!

Whatever your order is, leave it all up to us♪

Lycoris Recoil is finished and has 13 Episodes. It is also Known as: リコリス・リコイル, Lycoris Recoil

6. Black Lagoon

Within Thailand is Roanapur, a depraved, crime-ridden city where not even the authorities or churches are untouched by the claws of corruption. A haven for convicts and degenerates alike, the city is notorious for being the center of illegal activities and operations, often fueled by local crime syndicates.

Enter Rokurou Okajima, an average Japanese businessman who has been living a dull and monotonous life, when he finally gets his chance for a change of pace with a delivery trip to Southeast Asia. His business trip swiftly goes downhill as Rokurou is captured by a mercenary group operating in Roanapur, called Black Lagoon. The group plans to use him as a bargaining chip in negotiations which ultimately failed. Now abandoned and betrayed by his former employer, Rokurou decides to join Black Lagoon. In order to survive, he must quickly adapt to his new environment and prepare himself for the bloodshed and tribulation to come.

A non-stop, high-octane thriller, Black Lagoon delves into the depths of human morality and virtue. Witness Rokurou struggling to keep his values and philosophies intact as he slowly transforms from businessman to ruthless mercenary.

Black Lagoon is finished and has 12 Episodes. It is also Known as: BLACK LAGOON, Black Lagoon

7. Ergo Proxy

Thousands of years after Earth's atmosphere was destroyed, adventure blooms in the strangest of places. The domed city of Romdo is supposed to be perfect, but Re-l Mayer, a young female inspector from the Civilian Intelligence Office, knows better. In this place where humans and robots coexist, she receives a strange message: something is awakening!

Ergo Proxy is finished and has 23 Episodes. It is also Known as: エルゴプラクシー, Ergo Proxy

8. Panty & Stocking with Garterbelt

The "Anarchy Sisters," Panty and Stocking, have been kicked out of Heaven for, to put it mildly, misbehaving. Led by a priest named Garterbelt, these angels must buy their way back by exterminating ghosts in Daten City. But this task requires unconventional weapons for these unorthodox angels—they transform their lingerie into weapons to dispatch the spirits. Unfortunately, neither of them take their duties seriously, as they rather spend their time in pursuit of other "hobbies": Panty prefers to sleep with anything that walks, and Stocking favors stuffing her face with sweets than hunting ghosts.

Follow these two unruly angels as they battle ghosts, an overflow of bodily fluids, and their own tendency to get side-tracked in Panty and Stocking with Garterbelt.

Panty & Stocking with Garterbelt is finished and has 13 Episodes. It is also Known as: パンティ＆ストッキングwithガーターベルト, PanSto, PSG

9. Katekyo Hitman Reborn!

There is no putting it lightly—Tsunayoshi Sawada is just no good. He is clumsy, talentless, and desperately in love with the school idol Kyouko Sasagawa, a girl so completely out of his league. Dubbed "Loser Tsuna" by his classmates, he seems to be the very personification of failure in the guise of a middle-schooler.

Tsuna's boring life takes an extraordinary twist when he encounters the mysterious Reborn, who happens to be a hitman... and shockingly, a baby! Sent from the strongest Mafia family in Italy, Reborn is assigned the daunting mission of preparing the dull middle schooler to succeed the ninth boss of the notorious Vongola family, who is on the brink of retirement. The dull boy has a grueling road ahead, but with the help of his new criminal affiliates and his peculiar home tutor, perhaps even Loser Tsuna can achieve greatness.

Reborn! is finished and has 203 Episodes. It is also Known as: 家庭教師ヒットマンREBORN!, Kateikyoushi Hitman Reborn!, Home Tutor Hitman Reborn!

10. Black Lagoon: The Second Barrage

Rokurou "Rock" Okajima has joined the Lagoon Company, a pirate mercenary group which operates out of Roanapur, Thailand. Despite his initial protests, this filthy slum of depraved souls and merciless criminals now serves as the former salaryman's home. Stranded, with nothing left of his past life but the clothes on his back and his inner morality, Rock is forced to perform jobs alongside the other members of the Lagoon crew. Berated for his lack of spine as he wades through the underbelly of society, he must decide whether to continue on amidst the gunfire and ruthlessness or risk everything he has in an attempt to be free. Whether he chooses the comfort of a familiar land or the freedom of being an outlaw, his decision will have lasting consequences on the crew who gave him a home.

Black Lagoon: The Second Barrage is finished and has 12 Episodes. It is also Known as: BLACK LAGOON The Second Barrage, Black Lagoon 2nd Season, Black Lagoon Second Season

11. Trigun

Vash the Stampede is the man with a $$60,000,000 bounty on his head. The reason: he's a merciless villain who lays waste to all those that oppose him and flattens entire cities for fun, garnering him the title "The Humanoid Typhoon." He leaves a trail of death and destruction wherever he goes, and anyone can count themselves dead if they so much as make eye contact—or so the rumors say. In actuality, Vash is a huge softie who claims to have never taken a life and avoids violence at all costs.

With his crazy doughnut obsession and buffoonish attitude in tow, Vash traverses the wasteland of the planet Gunsmoke, all the while followed by two insurance agents, Meryl Stryfe and Milly Thompson, who attempt to minimize his impact on the public. But soon, their misadventures evolve into life-or-death situations as a group of legendary assassins are summoned to bring about suffering to the trio. Vash's agonizing past will be unraveled and his morality and principles pushed to the breaking point.

Trigun is finished and has 26 Episodes. It is also Known as: トライガン, Trigun

12. Hellsing Ultimate

There exist creatures of darkness and evil that plague the night, devouring any human unfortunate enough to be caught in their grasp. On the other side is Hellsing, an organization dedicated to destroying these supernatural forces that threaten the very existence of humanity. At its head is Integra Fairbrook Wingates Hellsing, who commands a powerful military and spends her life fighting the undead.

Integra's vast army, however, pales in comparison with her ultimate weapon: the vampire Alucard, who works against his own kind as an exterminator for Hellsing. With his new vampire servant, Seras Victoria, at his side, Alucard must battle not only monsters, but all those who stand to oppose Hellsing, be they in the guise of good or evil.

In a battle for mankind's survival, Hellsing Ultimate proves that appearances are not all they may seem, and sometimes the greatest weapon can come in the form of one's worst nightmare.

Hellsing Ultimate is finished and has 10 Episodes. It is also Known as: HELLSING OVA, Hellsing Ultimate

13. Kikansha no Mahou wa Tokubetsu desu

Shadow Realms have ravaged the earth and decimated almost everyone in their way. The survival of humanity hinges upon the success of just six mages, including analytic fighter Desir Herrman. The remaining heroes make one final stand to end the bloodshed...but to no avail. Desir closes his eyes on what should be the end of his life—only to open them and see the beginning of his school days?! Desir has returned thirteen years back to the past, where he’s been given another chance. A chance to see the loved ones he lost, a chance to meet his fellow warriors again, and a chance to save the world…!

A Returner's Magic Should Be Special is finished and has 12 Episodes. It is also Known as: Kikansha no Mahou wa Tokubetsu desu

14. 91 Days

During Prohibition, the law held no power and the mafia ruled the town. The story takes place in Lawless, a town thriving on black market sales of illicitly brewed liquor. One day, Avilio receives a letter from a mysterious sender, prompting him to return to Lawless for revenge. He then infiltrates the Vanetti family, the ones responsible for his family's murder, and sets about befriending the don's son, Nero, to set his vengeance in motion. Killing brings more killing, and revenge spawns more revenge. How will the 91-day story of these men guided by a tragic fate end?

91 Days is finished and has 12 Episodes. It is also Known as: 91Days, 91 Days

15. Devil May Cry

When a mysterious villain threatens to open the gates of Hell, a devilishly handsome demon hunter could be the world's best hope for salvation.

Devil May Cry is finished and has 8 Episodes. It is also Known as: デビル メイ クライ, Devil May Cry

16. Hellsing

Decades ago, the legendary Dr. Abraham Van Helsing and his companions defeated Count Dracula, one of the world's deadliest vampires. After this success his name was used in the founding of the Hellsing Organization, a British task force with the duty of eliminating supernatural threats.Hellsing follows the exploits of that very organization. Led by Integra Fairbrook Wingates Hellsing, the Hellsing Organization finds its trump card not in the power of man, but in the strength of a monster it has tamed. Alucard, one of the oldest and most powerful vampires in existence, now hunts his fellow monsters at Hellsing's bequest. Alongside new recruit Seras Victoria, Alucard will find that a new threat has arisen, one greater than anything the Hellsing Organization has ever dealt with before.

Hellsing is finished and has 13 Episodes. It is also Known as: Hellsing [ヘルシング], Hellsing

17. Baccano!

During the early 1930s in Chicago, the transcontinental train, Flying Pussyfoot, is starting its legendary journey that will leave a trail of blood all over the country. At the same time in New York, the ambitious scientist Szilard and his unwilling aide Ennis are looking for missing bottles of the immortality elixir. In addition, a war between the mafia groups is getting worse. On board the Advena Avis, in 1711, alchemists are about to learn the price of immortality.

Based on the award-winning light novels of the same name, Baccano! follows several events that initially seem unrelated, both in time and place, but are part of a much bigger story—one of alchemy, survival and immortality. Merging these events together are the kindhearted would-be thieves, Isaac and Miria, connecting various people, all of them with their own hidden ambitions and agendas, and creating lifelong bonds and consequences for everyone involved.

Baccano! is finished and has 13 Episodes. It is also Known as: バッカーノ！, Baccano!

18. The Fable

When you're the infamous prodigy hitman known only as “Fable,” many things come easy. Being a normal person, however, isn't one of them. In fact, being told that he can't kill anyone for a while may just be the hardest job Fable’s ever taken...

The Fable is finished and has 25 Episodes. It is also Known as: ザ・ファブル, The Fable

19. Phantom: Requiem for the Phantom

Mafia is rife in America where assassinations are a regular occurrence on the streets. Inferno, a mysterious company, is behind most of these dealings through the use of their near-invincible human weapon, "Phantom."

One day, a Japanese tourist accidentally witnesses Phantom's latest murder. Desperate to escape, the tourist hides in a secluded building. However, Phantom, revealed to be a young woman named Ein, and the leader of Inferno "Scythe Master" captures the tourist and brainwashes him.

Given the name "Zwei," this once peaceful tourist is now a puppet of Inferno with no memories. Drawn into a world of lies, deceit, and violence, Zwei must fight to survive, hopefully to one day regain his memories and escape from this world where he is constantly on the brink of death.

Phantom: Requiem for the Phantom is finished and has 26 Episodes. It is also Known as: Phantom 〜Requiem for the Phantom〜, Phantom: Requiem for the Phantom

20. Cat Shit One

This bold account follows the brave exploits of Sergeant "Packy" Perkins and his unit... of rabbits! Join Packy and Private "Bota" Botasky as they resolve an Iranian hostage crisis. Watch these commando-style bunnies through an anthropomorphic lens as events unfold and violence erupts.

Note: This anime has been provisionally set to "Finished Airing" due to lack of official information regarding future installments.

Cat Shit One is finished and has 1 Episodes. It is also Known as: キャットシットワン, Cat Shit One: The Animated Series, Apocalypse Meow