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Tani Oh

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Tani Oh

The Tani Oh ("Valley King" in Japanese) is the third boss from Metal Slug: Super Vehicle-001.

Series Information

The Tani Oh is a prototype heavy artillery tank, armed with two huge cannon capable of devastating large areas without much effort: these twin guns are possibly an experimental railgun, since their shots are instantaneous light bolts and the turret, instead of ejecting the expanded casings, discharges smoke and heat from the vents on its back. It is also equipped with two turrets on each side, both with a minigun and a mine launcher, to cover the tank in short range. Only one unit was produced, being used by the Rebels for testing purposes in the Käthehirt Valley.


The Tani Oh is a very simple, yet deadly boss. It moves in a lower platform compared to your character, so it will always be below you, forcing you to jump constantly (without the Metal Slug) to shoot at him. Its main weapon is its large double railguns, which not only covers a big area, but is also very fast. It also throws mines everywhere in your path and will sometimes use its miniguns to kill you. Having a Metal Slug while fighting the boss makes things a lot easier. Warning: If you blow up its two smaller turrets, it will constantly use its main laser turret, which goes a lot faster on it's own, making the battle a lot harder.

Also, while you're fighting Tani-Oh and choose to continue, instead of a Heavy Machine Gun appearing, it will be a Rocket Launcher, which only happens when fighting this boss.


  • The Mammoth Tank from the popular Command & Conquer series bear a resemblance to the Tani Oh. The 4 independent treads and the dual cannons are the standout features. It also looks like a M2-Hydra from Battle Tanx Global Assault.
  • The hull of the Tani Oh also resembles the up-armored variant of the Chinese Overlord tank in Command and Conquer: Generals - Zero Hour, the Emperor Overlord which is exclusively used by General Ta Hun Kwai of the Chinese People's Liberation Army (PLA).
  • Tani Oh's early design was based on British Churchil I heavy tank.
  • Another of Tani Oh's early design also based on British FV215b heavy tank prototype.
  • Its name (谷 王) means "Valley King".
  • Tani Oh is the only boss in the series that drops Rocket Launcher instead of Heavy Machine Gun when the players use a continue.
  • Tani Oh's pilot appears in a Metal Slug Pachinko game, and is a girl. There is not much information about her, other than her affiliation with the Rebel Army.
  • Tani Oh appears as a background boss in Metal Slug Defense in the Alaska stage in the world 6.
    • When you fight the Tani Oh in MSD, the Tani Oh was placed in the bottom of screen. This makes it very hard to damage it. However, Tani Oh can easily be destroyed via The Keesi II and Crablops' Leg jet engines.
  • In Metal Slug Attack Tani Oh is featured as the Monday-Tuesday boss in the Day Specific Mission.
  • In Metal Slug Attack, Tani Oh has a special variant made for the Extra Ops: Santa Trap, where its main cannon and mine launcher is is facing on Horizontal. in-order for it to fire its cannons against the enemy units in front.


Metal Slug Tetsuyuki | Hairbuster Riberts | Tani Oh | Shoe & Karn | Iron Nokana | Hi-Do

Mini-Bata | Allen O'Neil

Metal Slug 2/X The Keesi II / Iron Nokana MK II (X) | Aeshi Nero | Dragon Nosuke | Big Shiee | Hozmi | Rugname

Mosque Artillery | The Keesi II (X) | Allen O'Neil | Dai-Manji

Metal Slug 3 Huge Hermit | The Ten Commandments of Moses | Jupiter King | Sol Dae Rokker | Rootmars

Twin Ohumein-Conga | Monoeyes | Hairbuster Riberts | Hi-Do | Rugname

Metal Slug 4 Bura Gariae | Toschka Dalanue | The Iron | Big John | Sea Satan | Amadeus

Mecha Allen O'Neil

Metal Slug 5 Metal Rear | Shooting Ray | Wall Crawler | Sandmarine | Evil Spirit Incarnate

Black Hound | Stone Turtle (unused) | Mammoth Tower | Ptolemaios (unused)

Metal Slug 6 Bull Drill | Iron Sentinel | Brain Robot | Sea Worm | Invader Queen

Invader Controller

Metal Slug 7/XX Worm Mecha | Crablops | Destroyed Crablops | Fall Mecha | The Union | Rebel Gigant | Kraken
Metal Slug: 1st Mission Rebel VTOL | Rebel Train | Macba | Rebel Zeppelin | Eletromagnetic Crane | Hilde Garn

Facility Elevator | Macba | Rebel Truck

Metal Slug: 2nd Mission Big Bertha | Big Shiee | Rebel Reactor | Macba | Rebel Submarine | Tani Oh | Gunslinger | Rebel Submarine | Rebel Airplane | Hilde Garn's Slug | Rocket UFO
Metal Slug Advance Formor | Emain Macha | Kaladgolg | The Keesi III | Cabracan

Allen Jr.

Metal Slug 3D M-3 Rocket Van | Mosque Artillery | Spider-Bot | Rebel Underground Drill | Big Shiee | Morden Castle | Allen O'Neil | Lugus | Lieu Monster
Mobile games Rocket Control Room | Unknown Alien | Hellfire | Spiderbot | Cyclops | Mega Laser Turret | Mars Battle UFO | M-32 Water Carrier Plane | Mecha Kaiju | Alien Floating Structure

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