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->''The seven seas spread throughout the world. It is said that there is a monster for each of these seven seas. Ships are being attacked one after another. Sharks gather around monsters seeking human flesh. The ocean is not only a place of blessing but a place of terror. Defeat the violent gigantic monsters of the seven seas. An enormous bounty has been set for their heads. Brave youth go out to face the monsters.''

''The Ocean Hunter: The Seven Seas Adventure'' is a LightGunGame released in arcades by Creator/{{Sega}} in 1998. Set in an OceanPunk world where human civilization is being ravaged by terrifying sea monsters, you ply the seven seas with your trusty spear-gun seeking the bounties on these beasts' heads. While the oceans are swarming with all kinds of aquatic horrors, it is the Seven Great Monsters who are your greatest prize - and your deadliest challenge.

Tragically, the game was never ported to a home console, and is now extremely rare. It has been successfully emulated however.

See also ''VideoGame/DeathInTheWater'', a similar underwater-set game where all enemies are hostile marine life, but now in FPS form.


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!! This game provides examples of:

* AchillesHeel: Apart from the soft-spots, each boss has a vital point that must be hit three times in order to win; Kraken and Karkinos' eyes, Leviathan and Ahuitzotl's throat, Charybdis' light, [[WombLevel Midgardsorm's heart,]] and Rahab's hands, elbow, or third eye depending on the phase.
* {{Alternate History}}: The game takes place in an alternate steampunk version of the Earth we live in. Also interesting to add is that the oceans and the seas are named differently from the world we live in. (See also {{Steampunk}} and {{Oceanpunk}})
* AllMythsAreTrue: All bosses and minibosses are named after mythological creatures from all over the globe. However, all of them are [[AdaptationalWimp just stock (giant) sea monsters/prehistoric animals instead of their mythological namesakes]] to give the player characters an actual chance of ''winning''.
* AttackItsWeakPoint: Every boss battle has "sweet spots" that you have to aim for.
* BaitAndSwitchBoss: The battle with Basilosaurus ends prematurely when [[AlwaysABiggerFish Midgardsorm rears his ugly head.]]
* BigBad: The sea-god Rahab, who apparently created all of the other monsters.
* BossRush: The final stage, Panthalassa, has you fight four sub-bosses with no {{Mooks}} in between them, then sends you up against the final boss, who has three forms.
* BreathWeapon: In his intermediate form as Poseidon, the final boss spits [[KillitWithWater giant bubbles]] at you. They are much more dangerous than they sound.
* {{Demythification}}: The monsters you fight are all gigantic versions of mundane sea creatures and a couple prehistoric marine animals. [[spoiler:Subverted with the last boss where it initially looks like you face a strange but otherwise normal giant humanoid, who turns out to be an ancient sea god who created nearly all the previous monsters himself. For bonus points, Rahab is also the name of a sea monster and ocean demon from Jewish folklore.]]
* DevouredByTheHorde: A non-zombie example, as a diver in Texcoco Great Lake will get stripped to the bone by a swarm of piranha if you don't shoot enough of the fish to drive them off.
* DidYouJustPunchOutCthulhu: [[spoiler: How each boss goes down. The end credits reveal that the giant monsters were spawned from Rahab, meaning that you've been killing creatures that are less giant animals and more {{Animalistic Abomination}}s, before rounding it all off by killing the god of the sea himself.]]
* DireBeast: normal enemies are typically ordinary sea creatures and almost everything that you'll encounter is a real (if sometimes prehistoric) animal, but many of the bosses--including alot of the mid-level ones--are bigger and nastier than their real-world counterparts: Kraken is an even bigger giant Pacific octopus, Charybdis is a supersized anglerfish, and Karkinos is [[InformedSpecies ostensibly]] an enormous Japanese spider crab, to name a few.
* DualBoss: The three moray eels collectively called Hydra, the three Kerberos sharks, and the twin ribbon fish Vritra and Kaliya.
* EldritchOceanAbyss: Tartarus Deep acts as this, being a ginormous hole in the seabed filled to the brim with aggressive deep-sea fauna. The main enemies consist of gulper eels and what appear to be giant dragonfish, and the main bosses of the level are Scylla, Naga, and Charybdis, a GiantSquid, oarfish, and anglerfish respectively.
* EverythingTryingToKillYou: From Jellyfish and Sea Snakes to Sharks. If it's capable of hurting a diver, it will try to in this game.
* FinalBoss: Rahab. He is the progenitor of almost all the sea monsters you faced up to that point, and naturally puts up a better fight than all of them.
* FlunkyBoss:
** Leviathan is followed by smaller sharks.
** Charybdis keeps gulper eels in her mouth that she will occasionally spit at you..
** Medusa and her jellyfish.
** Midgardsorm's hideous parasites.
* GaiasVengeance: Rahab was pissed at humans for polluting, abusing, and otherwise messing with the ocean, so he created the other Great Monsters to put us in our place. Except Midgardsorm, it is implied he was terrorizing the seas before Rahab began his campaign against humanity.
* GiantEnemyCrab: Karkinos is a textbook example. [[AttackItsWeakPoint Attack Its]] [[GoForTheEye Eyes]]!
* GiantSquid: Giant octopi Kraken and Umi-Bozu; giant squid Scylla. All use CombatTentacles.
* GodOfEvil: Rahab. He claims to be trying to take back the sea from humans, but the huge amount of damage his children are causing as well as his ending monologue overall proves he is much more interested in destroying humanity and plunging the world into chaos.
* GoForTheEye: [[GiantSquid Kraken's]], [[GiantEnemyCrab Karkinos']], as well as [[FinalBoss Rahab's]] [[AttackItsWeakPoint weak point]].
* HeWasRightThereAllAlong: Kraken, the giant octopus, stalks you throughout a sunken ship.
** You fight a miniboss, Basilosaurus, in the middle of a suspicious hole in the seafloor. Sure enough, when it seems you've won, the resident of that hole decides to stick its neck out and eat you and Basilosaurus. [[WombLevel Cue the second half of the level]].
* JustEatHim: Quite a few of the bosses try this.
** Near the end of her battle, Charybdis decides to attempt this, simply inhaling you rather than spew gulper eels or charge to bite.
** Midgardsorm does this too, and it ends poorly for him as it gives the player a direct shot at his heart.
** This is Leviathan's MO form the start, with him being a [[ThreateningShark Megalodon]] and all.
** As a last ditch effort to kill the player, Rahab will wrap his freakish tongue around them to do this. Fortunately, this also gets you in the right position to shoot his eye and finish him off.
* KillItThroughItsStomach: This is how Midgardsorm is beaten- after swallowing the heroes, they kill it by attacking its heart from the inside.
* KrakenAndLeviathan: Pretty much to be expected in a game that focuses on destroying huge sea monsters. Kraken is a giant octopus and the first boss, while Leviathan is a Megalodon and the second boss.
%%* LightGunGame
* LightningBruiser: Rahab is easily the fastest of the bosses and ducks in and out of pillars for cover and to take the player off guard with powerful attacks.
* LoneWolfBoss: Of the seven main bosses, Midgardsorm is the only one that isn't one of Rahab's creations (Or Rahab himself).
* LudicrousGibs: The natural result of [[spoiler:shooting Midgardsorm's heart until it ''explodes'']].
* MadeOfPlasticine: Who would've thought that a regular shark (those at the start of the game) would take ''less'' damage than say, a stingray?
* MarathonBoss: Rahab is a very long boss. He takes three forms which you face all in tandem.
* MiniBoss: Every level except Texcoco Great Lake has at least one. The final stage has ''four''.
* MookChivalry: The {{Mini Boss}}es "Hydra", which are three giant moray eels. They're not very bright as they attack the protagonists one at a time, instead of all three at once. {{Subverted}} by "[[HellHound Kerberos]]", three big nasty sharks who attack the protagonists all at one go.
* OceanOfAdventure: The main plot of the game is that you're an explorer in a steampunk world trying to explore the uncharted in search of treasure and research, but behemoth aquatic monsters keep attacking ships to the point bounties are put on them. Your player characters decides to collect and likewise make the ocean safe to travel in.
* OceanPunk: You travel in a hot air balloon to travel across the ocean and attack enemies with a unique spear gun that also acts your propulsion as you go underwater. Other divers using similar technology confirms you aren’t just some eccentric inventor using odd tech.
* OneWingedAngel: The FinalBoss goes through three forms: Dagon, Poseidon, and Rahab.
* PrehistoricMonster: Ahuizotl, the boss from the fourth level (Elasmosaurus); The sixth level has Tylosaurus, Eurypteron, Dunkleosteus and Anomalocaris...''as normal enemies''! There's also a ton of trilobites and a Basilosaurus mini-boss.
* PikePeril: The player briefly encounters Pikefishes as one of the common enemies after piranhas during the fourth level.
* ProngsOfPoseidon: The FinalBoss uses this in his [[SequentialBoss second form]]. Then again, that form ''is'' named "Poseidon".
* RailShooter: A unique take that puts the player underwater.
* ReligiousAndMythologicalThemeNaming: Most of the bosses and minibosses are named after creatures and figures from mythology.
* ReptilesAreAbhorrent: {{Mook}} monsters include sea snakes and prehistoric mosasaurs. There's also the sub-bosses Sea Dragon and Black Dragon (giant marine iguanas)and Sea Serpent(a giant sea snake) and the boss Ahuizotl (elasmosaurus). (Despite its name, the sub-boss Basilosaurus is actually a prehistoric whale.)
* RuleOfCool: Quite a few of the "monsters" are harmless to humans in real life if are left unprovoked. Namely the Sea Dragon and Black Dragon (marine iguanas), the stingrays, and Naga, Vitrya, and Kalya (the ribbon fish). Medusa (a lion's mane jellyfish) would only sting if touched and wouldn't actively charge at a person. [[spoiler: All things considered, it's possible Rahab affected them in some way to make them hostile toward the humans despoiling his seas.]]
* TheRuntAtTheEnd: Going by the ending narration, Midgardsorm is the only one of the Seven Great Monsters who ''isn't'' Rahab or created by him. It is merely an ancient monster who survived to the present day.
* SandWorm: Midgardsorm is a textbook example, albeit one that lives in the seafloor rather than the desert.
* SeaMonster: Just about every popular sea monster gets a shoutout in this game. Sharks of assorted types, sea lizards, sea snakes, octopi, eels, giant squid, oarfish, angler fish, elasmosauruses, jellyfish, crabs, prehistoric whales, marine worms, and a mad sea god. And that's just the minibosses and bosses. Many mooks are also present.
* SequentialBoss: Rahab goes through three forms: Dagon, Poseidon, and Rahab.
* {{Steampunk}}: You travel between stages in a pimped out hot air balloon and fight with an automatic spear gun.
* StockNessMonster: Ahuizotl. In addition to bearing a remarkable resemblance to Nessie, his territory is a lake.
* StockSoundEffect: All the boss roars are variations of the Predator's roar from, well, ''Franchise/{{Predator}}''.
* ThreateningShark: The player will encounter a ton of them in many flavors in this game; from small minion sharks, to bigger boss sharks, to the big end level boss shark Leviathan.
* TimedMission: White Death is attacking a scientist, and if you want to fight [[OptionalBoss Sea Dragon]], you'd better be really damn fast. If the scientist dies, you don't get bonus health and... [[PermanentlyMissableContent well...]]
* TurnsRed: All the boss fights will have two parts: part one, fight back the boss. Part two: the boss try his last trick on you, and you have to shoot his weak point thrice. The mechanics depends on the boss (eg: Kraken will wrap his tentacles around you, Charybdis will suck you inside her mouth and so on).
* UnreliableNarrator: Rahab ''claims'' that humans were despoiling the sea and such. Though being an ancient creature who's never really interacted with humans, it's possible he was more pissed that they were just sailing on ''his'' domain considering he mention that "...as if man had owned the ocean". Not as if gods can't be petty after all.
* UnderTheSea: Except for the fourth stage, which takes place in a freshwater lake (and on the bank, when fighting the boss).
* UnderwaterBossBattle: Every battle in the game, by default, with one exception; Ahuizotl. For the second phase, you get up onto a ruined archway above the surface and essentially play whack-a-mole, but with water instead of dirt, a harpoon gun instead of a hammer, and an irate reptile instead of moles.
* UnderwaterRuins: Ubiquitous, but especially in Texcoco Great Lake and Panthalassa.
* WarmUpBoss: The first sub-boss is the easily-defeated White Death.
* WaterfrontBossBattle: The fight with Ahuizotl initially takes places entirely underwater, but it becomes this for its second phase after depleting half of its health.
* WombLevel: The second half of the West Ocean takes place inside Midgardsorm, a giant worm that's swallowed you (and countless ships) whole. You're swarmed by creepy parasites and kill it by attacking its heart.
* YouKilledMyFather: A diver whose raft is destroyed in Texcoco Great Lake reveals – if you can save him from the piranha – that he was out on the water with his harpoon gun because Ahuizotl killed his father. He implores you to take her down while swimming to safety.
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