Oguma is the main antagonist from the PlayStation 2 Metal Slug 3D.


Oguma is the CEO of the Oguma Corporation, a powerful and technologically advanced company that has obtained fame through various useful gadgets. He allies himself with General Morden to decipher a treasure that the general found 10 years before the game begins. This mysterious device is known as the Alator and it's capable of creating destructive weapons superior to anything else on the earth.

Near the end of the game, Oguma betrays Morden by "taking back" the Alator. He reveals to Marco and company that he is actually a member of the Tuatha de Danann, an advanced race of beings that live in an age three hundred million years in the past. They placed the Alator on earth three hundred million years ago as an information gathering device and intend to bring it back with them to the past. With the Alator, they intend to continue evolving their culture and erase the current timeline for their ideal history.

Once his race reaches their evolutionary peak, it inevitably self-destructs. To prevent this, they began their experiment by placing an Alator on a planet. The Tuatha de Danann sleep for three hundred million years and awake to retrieve the gathered information. If the world they examined clashes too much with their history, they will simply erase the world's current history and start the experiment over. Oguma states that they have repeated the same experiment countless times before and have recorded each instance to avoid his race's evolutionary self-destruction. Later, Marco and company believe that Oguma's experiments have caused an open rift in the space-time continuum.

He unlocks the Alator and it erects the tower giant, Lugus. While he transfers the information from Lugus to their records, the four heroes stand against them to save their history. After they defeat Lugus, another tower giant from one of Oguma's previous experiment (Lieu) absorbs it. When this happens, his culture's collected data is erased and he is forced to tame the wild new creation. Marco and his crew decide to destroy it to prevent anymore damage to the world's timeline. In spite of their efforts, the Tuaha de Dunan fail to control it and prepare to meet their final end. Before his apparent demise, Oguma flashes a brief knowing smile to the player just before he is engulfed by the living weapon.

However, Oguma manages to survive and is last seen approaching Rumi Aikawa. Expressing his sincere hope that her people may yet be able to learn from the mistakes of his, Oguma leaves the data disc of his people's history with her. Oguma is last seen turning around and calmly walking away.


Composed and wizened, Oguma is a polite scientist. He believes his actions are part of a large experiment that shouldn't be interrupted. In the end, he eventually believes in the power of humanity, partially due to Marco insisting that he lives for the future.

External Links

Metal Slug 3D
Major Characters Marco Rossi | Eri Kasamoto | Tarma Roving | Fio Germi
Supporting Characters Rumi Aikawa
Antagonists Donald Morden | Allen O'Neil | Oguma
Organizations Regular Army (Peregrine Falcons | S.P.A.R.R.O.W.S) | Rebel Army | Oguma Corporation
Bosses M-3 Rocket Launch Support Van | Mosque Artillery | Spider-Bot | Underground Cruise Missile | Morden's Battleship | Morden's Castle | Allen O'Neil | Lugus | Lieu
Weapons Heavy Machine Gun | Rocket Launcher | Laser Gun | Shotgun | Flame Shot | Enemy Chaser | Iron Lizard | Super Grenade | Drop Shot | Double Machine Gun | Grenade | Fire Bomb | Monolith | Sniper Rifle | Smoke Bomb
Slugs SV-001 | Slug Gunner | Slug Flyer | Slug Mariner
Heroes Main Series Marco Rossi | Tarma Roving | Eri Kasamoto | Fio Germi | Trevor Spacey | Nadia Cassel | Ralf Jones | Clark Still | Leona Heidern
Spin-Offs Walter Ryan | Tyra Elson | Hero | Gimlet | Red Eye | Tequila
Mobile Roberto Nicola | Nathalie Neo | Alisa Stewart | Helton | Tilde | Nikita | Matilda | Amir | Whip | Heidern
Support Hyakutaro Ichimonji | Rumi Aikawa | Madoka Aikawa | Utan | Navel | Selina | Issenman Tarou | Eris | Hyakumantaro | Pupipi
Villains Main Series Donald Morden | Allen O'Neil | Abul Abbas | Rootmars | Doctor | Avatar of Evil | Invader King
Spin-Offs Allen Jr. | Oguma | Macba | Lt. Wired | Kanan | Hilde Garn
Mobile Unknown Alien | Victor | Ptolemaios | Anubis the Chained
Instructors Sophia Greenville | Margaret Southwood | Riviera von Wittenberg | Maryell von Wittenberg | Cynthia Hartnett | Anne
NPC Announcer | POWs | Duke Koudou | Satiko Suzuki | Gerhardt City Civilians | Scott Amundsen Jr. | Miner | Genie of Lamp | Orca | President | Survivors | Fishman | Lumberjack | Sailor | Chinese Soldier
Crossover KOF Team | Battle Cats
Unused Phil Gene | Michiko Nakajima | Angry Man | "Achilles" | "Tabomba"
Metal Slug Attack
Regular Army Associates MS-Alice | Anna Wiese | Midori Schumann | Mello | Rita Lewinsky | Amber | Nikita | Reika Bradford | Louise | Gisee | MS-Heart | Ashley | Rocky | Growl | Jephet | Victoria | Claudia | Kanae | Howell
Metal Device Project Perche | Ami | Molly | Menzel | Ulala | Maggie | Avvio | Quaith
Rebel Army Associates Rapid | Julia | Chloe | Izabella | Edda | Growth & Cline | Naomi | Alesha | Jane Doe
ACE Abigail | Dion | Romy | Kriemhild | Katalina
"Frozen Brigade" Beatriz | Vicky | Dolores
Blaze Brigade Grazia | Loretta | Norah
Allen Platoon Destrade | Huracan | Conny | Nantes | Padwah
Science Department Vita | Navy | Nova | Emma | Millefie
Arabian Army Shizuka | Aisha
Ptolemaic Army Rebellion Dragunov | Yoshino | Caroline | Veronica | Sisilia | Towa | Simon | Miharu | Chunyan | Owen | Sho | Lucy | Phoebe | Josette | Mizuna | Matilda | Little Lady Black | Svetla | Humphrey | Lithos | Yutong
Cultists Mira | Maria | Damian | Achetto | Sally | Cara | Oao-One
Secret Sect Anastasia IV | Believers | Beecham | Melvina | Anastasia I
Space Army Martians Professor | Mars People Neo | Percier | Clone Abby | Clone Betty | Mars People Rangers | Ariadna | Gemini Twins | Halle | Bonny | Clario | Harriot | Code Marionette:Un | Pauline | Leone | Claris
Invaders Odette | Annette | Lydia | Nowan | Schwarz Metzelei | Fedeln Metzelei | Rillacle | Franke | Teleko | Bloom Metzelei | Odile | Bersek | Geweih Metzelei | Purple King | Barbeln | Biene Goldenes
Independent Army Amadeus Syndicate White Baby | Alma | Iron Fortress | Valerian Bears | First Baby | Type:Ant-Lion
Red Goblin Society Scotia Amundsen | Red Goblin | Vatn | Jin | Aileen | Elena | Licht | Ichima
Mummy Army Pharaoh | Cleopatra | Hemet | Arsinoe | Hathol | Sharifa | Ramal
Vampires Aswang | Agalia | Sharl
World Military Corp. Kelly | Maya | Mirror Mantis
Independents El Dorado | Elysion | Esther | Teresa | Minerva | Yang Dao | Otto | Yuki Tsuki Hana
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