http://static.tvtropes.org/pmwiki/pub/images/EvoSearchForEden.jpg
->[[OpeningNarration About 4.6 billion years ago, the "Sun" had nine smaller stars and named the third one "Gaia".]]\\
\\
'''The Sun:''' My dear Gaia! Please listen to me. From this time forward, every 1 billion years, you will have children called "Life". One of them will be able to help you to build a new era. Each child will must endure a difficult trial. You might think it's too severe, but it is necessary. The trial is a test of Nature: "The survival of the fittest". If he passes, I will allow him to be your partner and to enter Eden.

A very unusual and highly obscure ActionRPG for the {{PC98}} and SNES, in which you play [[ArtisticLicenseBiology a creature which evolves]] in order to survive the dangerous prehistoric world and eventually to join Gaia, a personification of Earth, in Eden. However the evolutionary process has been disrupted, and it is slowly revealed that there is an overwhelming force behind this.

The game received little attention upon its release, but has since become a cult classic and a pioneer of the evolution gaming genre. It is noted for its unique gameplay system, sprawling world and its epic, eon-spanning scale.

It was developed by a small company called ''Almanic'', under the publishing of [[SquareEnix Enix]].

Has a [[Characters/EVOSearchForEden developing character sheet.]] Please contribute, especially if you've played the original.

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!!Related Tropes:
* AlluringAnglerfish: You, with the Angler Horn evolution.
* AmbidextrousSprite
* AncientAstronauts: A throwaway line early on mentions some kind of alien interference in seeding the crystals. [[spoiler: Later on they apologize for screwing evolution up by doing so.]]
* AnimeHair: Gaia, and how. Not much because of the odd shape, but rather because it's ''the ocean itself''. The rippling light underwater is used on her hair. You can take a look [[http://www.youtube.com/watch?v=8m4EfmTIQak&feature=related#t=01m54s here]]. Oh, and extra points for it [[YouGottaHaveBlueHair being blue]].
* ApocalypseWow: Shown at the end of Chapter 3 when a huge swarm of meteors falls down to Earth on the dinosaurs, killing them and bringing the Apocalypse Class to ApocalypseHow/{{Class 4}}. [[KillTheCutie Even the baby dinosaurs aren't spared from the destruction.]]
* AppliedPhlebotinum: The crystals.
* BackFromTheDead: [[spoiler: Sure, the Queen Bee only says that Bolbox made her big again, but she DID die at the end of Era 2 and was eaten.]]
* BambooTechnology: The Monkey Humans and [[spoiler:the Dino-People]] utilize this.
* BatmanCanBreatheInSpace: If you've evolved into a bird, then there are two secret areas (one in World 3 and one in World 5) in which you can fly right up into space.
* BigBad: [[spoiler: Bolbox]]
** BiggerBad: [[spoiler: The Whispers/Martians]]
* BlindIdiotTranslation:
-->[[MemeticMutation "Mysterious Time Stream evolves you."]]
* BoringButPractical: The [[AlluringAnglerfish Angler Horn]] isn't used to attack, but it makes LevelGrinding easier.
* BossRush:
** The first miniboss arena of the Ice age consists of three mammoths.
** [[spoiler: The Final Boss, Bolbox, is a minimal threat on his own. He is immortal with his eight crystals, six of which summon powerful enemies that are strengthened versions of previous enemies and the second boss, Debustega. The fight with Bolbox is more against these monsters, while dodging his occasional tentacle attack. Bolbox can only be defeated only when he can't summon any more monsters.]]
* BraggartBoss: Many of the bosses are like this, especially Debustega.
* ButThouMust: Making it worse, the game also likes to show you just how much damage you did when you do what Thou Must. The game makes clear that you're repeatedly committing ''genocide'' against multiple other species to clear the road for your own evolution. While it's shown to be necessary in many instances, or else an act of self-defense, evolution is still an extremely unforgiving mistress.
* ClassChangeLevelReset: EVO points are lost on a new body, which starts on the weakest form. However, the green crystal lets you borrow an earlier form to make recollecting some EVO points easier.
* ColonyDrop: [[ForegoneConclusion How the Dinosaur Age chapter ends.]]
* CollisionDamage: Of the near infuriating kind. Even enemies that normally stand still until attacked will cause damage. (See CycleOfHurting below.)
* CrystalSpiresAndTogas: Fort Bird-Man has a bit of this aesthetic; flying Mayincatec castles built on crystal-powered technology. Even more so, the Rogons and [[spoiler: the Martians]].
* CycleOfHurting: The fact that every attack causes stun lock can make the game easier or harder than usual.
** An enemy that [[CollisionDamage overlaps your character's hitbox]] will become either a minor annoyance or, in the case of a strong boss, a guaranteed death.
* DeathIsASlapOnTheWrist: Dying in the game only results Gaia resurrecting you at the cost of half of your saved up EVO points. Not much of a penalty when you don't have very many saved up.
* DegradedBoss: The King Kuraselache, boss of Chapter 1, reappears in Chapter 5 as a regular (but rare) enemy.
** Also, the Tyrannosaur/Tyrasaur group, the boss of Chapter 3, appear in normal areas in the next two eras. Also, [[spoiler: the Queen Bee is not degraded from boss to enemy, but from Era Boss to a normal boss.]]
* DemotedToDragon: [[spoiler: The Queen Bee and the Tyrasaurs become loyal followers of Bolbox after he brings them back in the end.]]
* DifficultButAwesome: Dinosaurs, fittingly, have a lot of trouble with the Ice Age (though in this case, it's because they slip on the ice, not because it's too cold for them). However, they retain their EP from the Dinosaur Age (which are lost if you evolve into a mammal), and have a slight edge over mammals in [[MightyGlacier raw power and defense]], which can be helpful in the final age.
* DyingRace: A small group of peaceful dinosaurs survive the Ice Age, hidden away in a forest on North America in Chapter 5. All they ask is to be left in peace and let nature take its course. You ''are'' part of nature's course, so you can kill them if you want. Don't worry, they respawn when you come back in.
* EasyLevelsHardBosses: A lot of the main areas are pathetically easy, but most of the bosses are excruciatingly difficult.
* EldritchAbomination: [[spoiler: Bolbox, a hideous giant cell.]]
* EverythingsBetterWithDinosaurs: [[spoiler: Even after the Dinosaur Age chapter.]]
** When you get a new body, you'll even find your previous fish form to be better than the base amphibian, and the same for each evolution afterwards.
*** Though oddly, using a green crystal to devolve back into a fish proves to be a significant power-down compared to just swimming as an evolved, later life-form type.
* EverythingsBetterWithPenguins
** [[MisplacedWildlife At the north pole.]]
*** Strangely, penguins (well, their ancestors) [[AluminumChristmasTrees actually lived that far north at the time]]. Gradually they moved farther south until almost all species were in the southern hemisphere.
* EvolutionaryLevels: A necessary concession to the game mechanics. There are some exceptions in that it's not a clean "leveling" and there are many MutuallyExclusivePowerups.
* FeatheredFiend: The Bird-Men.
* FishPeople: The [[GiantSpaceFleaFromNowhere Rogons]].
* FiveBadBand: [[spoiler: Bolbox's group.]]
** BiggerBad: [[spoiler: Whispers/Martians, though they're not directly involved. They're just responsible for everything.]]
** BigBad: [[spoiler: Bolbox]]
** TheDragon[=/=][[EvilGenius The Evil Genius]]: [[spoiler: Cro-Maine]]
** TheBrute: [[spoiler: The Tyrasaurs]]
** DarkChick: [[spoiler: Queen Bee]]
* FlunkyBoss: Mother Prime Frog spawns [[GoddamnedBats baby Prime Frogs]] to help her fight you. Killing them provides meat, which can be used to regain health during this battle.
* GaiasLament: During the Age of Amphibians, much of the world has turned into a barren wasteland due to the insects' overeating of the plants. Fortunately, the world gets better.
* GainaxEnding: If you think about it, yes. Era 1 is the most accurate of the Eras and is the most normal, but after that, things get... odd. It climaxes in Era 5, which features [[spoiler: monkeys with wooden elevators, mutant fish riding mutant sharks and wielding guns, and ultimately a giant cell with the name of a type of algae (volvox, translated as Bolbox). Oh, and Martians were responsible for the whole thing by creating a Crystal that might really have been eight Crystals the whole time and sending it/them to Earth, only for Bolbox to ''eat them and turn them into living creatures''. Yeah...]]
* GiantSpaceFleaFromNowhere: The Rogons. Most of the rest of the enemies have some kind of foreshadowing, even if the plot's a bit thin and unconnected, but the Rogons are both required and have nothing to do with anyone else.
** The final boss definitely qualifies as well. You have zero idea of what's awaiting you as you head through the final dungeon/area.
* GoalOrientedEvolution: The object of the story, as well as the game's central basic mechanic (unless the player is more concerned with creating [[AwesomeYetImpractical entertaining life forms than functional ones]]).
* GoombaStomp
* GreenRocks: The crystals.
* HitPoints
* HopelessSuitor: [[spoiler:{{B|igBad}}olbox, a hideously mutated single-celled organism, wants to be the one to enter Eden with Gaia.]]
* HyperDestructiveBouncingBall: The Trilobites from Chapter 1 and the Nautiloids from Chapter 3 can morph their bodies into a round shape and bounce around to attack. If you happen to be close to the ground and one of them does this beneath you, they'll basically ricochet between you and the ground until you die.
* InfinityPlusOneSword: [[spoiler: Two-Legged Mammal and the Dragon.]]
* InnocentFanserviceGirl: Gaia is naked.
* InstantDeathRadius: [[ThatOneBoss Cro-Maine]] can hit you from almost halfway across the screen when he swings his club. Not only does it do a lot of damage, it'll send you flying right out of the level, and you'll have to start all over again. Meaning that ''he'' will have full health again, but you won't unless you went and ate some T-Rex meat to recover.
* InterspeciesRomance: You and Gaia (especially if you're not [[spoiler: human]]). [[spoiler: Bolbox]] also has an interest in Gaia, for a more extreme example.
* InUniverseGameClock
* {{Irony}}: [[spoiler:Bolbox]] proclaims itself to be the pinnacle of evolution. When you finally see it, it turns out to be [[spoiler:something resembling a giant amoeba. Single-celled organisms being the ''beginning'' of life/evolution]].
** [[spoiler:Bolbox was "Volvox" in the original Japanese, and volvox is an extremely basic green algae. Algae is trying to kill you!]]
* LeapOfFaith: Jumping off the top of Mt. Brave is the only way to [[spoiler:evolve into a bird]].
* LeaveYourQuestTest: [[spoiler: Tyrannosaurus, Birdman King and Rogon King]] will each offer you a choice to [[WeCanRuleTogether join them]] and abandon your quest to reach Eden. If you accept, [[NonstandardGameOver you will see a cutscene of the possible outcome then get sent back to the world map]].
-->"We shall look into your future."
** [[YouCantThwartStageOne You Cant Thwart Evolution]]: These endings all show that [[spoiler: humans]] become the dominant species on Earth with or without you, which means that [[spoiler: Bolbox]]'s own plan ultimately fails anyway.
** Of course, [[spoiler: Bolbox was a caveman at one point, he still thinks he is...]]
* LegoGenetics: E.V.O. runs on this trope. Every time you add or remove a part, the change is done instantly. This can be exploitable in boss battles by changing one's neck from short to long or vice-versa whenever you get low on health, completely refilling your health. The neck is the cheapest part to change, but you can substitute any part and do the same thing.
** A better tactic - and an even stranger example of this trope - was to grow a cheap horn, which would also refill your health. The horn would 'break' after attacking with it 3 times... and this would somehow count as an evolutionary change, which would refill your health again.
** Admittedly, EVO isn't exactly clear on whether or not it's supposed to represent real evolution. There's substantial hints that the whole process is being [[spoiler:hijacked by aliens]], at least in the case of certain enemies, and many creatures berate you for not evolving "the proper way".
* LevelGrinding: You will need to farm EVO points to improve your base body (especially when it gets reset to zero on a new species type). Even after the necessary evolutionaty steps, you still need to do it if you want to build the EVO to health buffer for extended battles.
* LighterAndSofter: Compared to the original PC-9801 game. It's still fairly dark for an SNES game, mind.
* MagnetHands: Tool-based creatures don't drop their weapon when hit.
* MamaBear: Prime Frog Mother gets angry at you for scaring off the children tormenting a reptile.
* MeanwhileBackAtThe: This phrase is used after finishing the last area in the world of Dinosaurs
* MixAndMatchCritters: The player character can be one, especially as a mammal.
* MookBouncer: The annoying Pteranodons on Mt. Brave will attempt to grab you and drop you off the mountain during your ascent.
** The Cro-Maine miniboss uses a RingOut tactic, with his attack knocking you out of the arena.
* MotherEarth: Gaia
* MutuallyExclusivePowerups:
** Back-of-the-head mutations always have trade-offs.
** The top fins in the Amphibian Age.
** The bird path has worse armor and strength than the dinosaur.
** The mammal path loses wings, tails, fins and bipedal shapes.
** Four-Legged Mammals have more versatility than any other classification; everything from jaws to body types to [[spoiler: becoming human]] has a trade-off somewhere.
** [[spoiler: The monkey, human and mermaid lose most evolution paths. The monkey and humans can only adjust their own body size.]]
* NatureIsNotNice: What you get when you combine ButThouMust with VideoGameCrueltyPotential. YouBastard.
* NeverSayDie: You don't kill anyone. You "defeat" them. Especially funny when the bosses declare that "I'm going to defeat you!"
** Averted in other cases. "''Kill'' only for survival and for food."
* NinjaPirateZombieRobot: Comes naturally with the ability to [[MixAndMatchCritters mix and match the body parts of different animals]]. Tiger head with bull horns on a rhino's body, anyone?
* NintendoHard: This game can be quite challenging. Prepare to grind a lot, or be destroyed by some more aggressive bosses.
** The key to boss battles is to go in with a lot of EVO points so you can restore your HP. However, you're bound to run out eventually and die; and your punishment for dying is to lose those very same EVO points. This leads to tons of grinding or forced SaveScumming.
* OneHitPolykill: If they're all in the same area of your strongest bite.
* OneWingedAngel: The well-hidden [[spoiler:[[DinosaursAreDragons dragon form]]]].
* OurMermaidsAreDifferent: The secret mermaid evolution seems to be a human head and arms on a fish body. And you attack by ''sneezing''... or, depending on your interpretation of the animation, kissing.
* PaletteSwap: Later incarnations of bosses do this, but one changes its skin entirely.
* ParabolicPowerCurve: Some upgrade paths are a bit more unwieldy (e.g. humans may have trouble in the BossRush); and one path entirely loses the ability to heal using evolutions until you complete that section.
* PointOfNoReturn: Normally contained only across eras, but the first world has a one-way path.
* PrestigeClass: There are two hidden evolutionary paths you can reach: evolving into a bird in Chapter 3, and evolving into a human from a mammal. There's also a third route you can take in Chapter 5, which lasts for exactly one level: [[spoiler: evolving into an aquatic mammal, which culminates in a mermaid form.]]
* SchizoTech: Early humans use stone-age BambooTechnology, but certain crystal-powered species (Bird-Men, the Rogons, [[spoiler: the Martians]]) have access to CrystalSpiresAndTogas.
* SchmuckBait: Go ahead, try jumping onto dry land before you've beaten the first boss and evolved lungs.
** Actually, it's a lack of breathable air up there, but same difference.
* ScratchDamage: Minimum of 1 point of damage regardless of defense.
* ScriptedEvent
* SecretLevel: In Chapter 3, [[spoiler:the cloud level and the River of Asteroid]].
* SelfImposedChallenge: Beating the game as a dinosaur, mainly because the Ice Age is [[SlippySlideyIceWorld slippy-slidey]] for them, and unlike birds they can't get around that by flying. Also, they're somewhat weaker than mammals, and ''far'' less agile.
* SideView
* SlippySlideyIceWorld: The Ice Age chapter, naturally. Mammals don't slide on it, though.
* SpellMyNameWithAnS: This occurs due to text constraints and regular letter mutation, e.g. dinichthys to zinichthy, stromatolite to strolite, cladoselache to kuraselache, ichthyostega to ikustega, brontosaurus to brosaurus, tyrannosaurs to tyrosaurs, [[spoiler: volvox to Bolbox]].
* StarfishAliens: [[spoiler: The final boss is a gargantuan mutant single-celled organism.]]
* StockDinosaurs: Pachycephalosaurus, Styracosaurus, Brontosaurus, Parasaurolophus, Stegosaurus, Triceratops, Plesiosaurus, Pteranodon, Rhamphorhynchus, Ankylosaurus, Allosaurus, and TyrannosaurusRex all appear in the Age Of Dinosaurs chapter. Some even appear later, claiming they have difficulty surviving.
* TechPoints: You acquire EVO Points and spend them as you wish to evolve body parts.
* ThatMakesMeFeelAngry: The Ikustega boss does this after you laugh at him.
-->'''Debustega:''' You make me very angry! I am going to [[NeverSayDie defeat]] you!
* {{Threatening Shark}}s: The Kuraselache and their King in the first epoch, with the King becoming a [[DegradedBoss standard enemy]] in the fifth epoch.
* UnmovingPlaid: Gaia's hair, which resembles shimmering waves.
* ViolentlyProtectiveGirlfriend: The cause of ThatOneBoss, the Yeti.
** The Queen Bee also counts, as she's furious with you for defeating her husband.
* VoluntaryShapeshifting: The whole gimmick of the game.
* WhatTheHellPlayer: Attack the friendlies after defeating the first Chapter 2 boss.
** VideoGameCrueltyPunishment: Eat them and you're dropped to 0 HP (unless you evolve immediately after chowing down).
*** This does not occur if you have evolved so that one jump on each will kill them.
* WellIntentionedExtremist: [[spoiler: The Whispers/Dino People/Martians, who wanted to help Earth civilization out a little bit by completely messing up the evolution process so it's sped up and, if a mistake is made, undo it with the green crystals. They are responsible for the giant insects, the Bird Men, Rogons, and Bolbox. They apologize if you can find them high above the mountain in the final era and attack them.]]
* WolfpackBoss: The third major boss, the Tyrannosaur/Tyrasaur Clan.
* WrapAround: In World 4, you're somehow able to travel down from Australia and end up at the North Pole.

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'''Tropes related to the original PC-9801 game:'''
* {{Atlantis}}: A visitable location during Chapter 5, which is shown to be a Lunarian colony. Their current target is the continent of Mu, also a Lunarian colony.
* {{BFG}} : The Orihalcum cannons.
* BoringButPractical: Throwing rocks at your opponents does a surprisingly high amount of damage.
* CastFromHP: To use the higher end techniques.
* EvilLaugh: The BigBad does it a few times but a noteworthy one is when it's done so, as [[spoiler: meteors fall down on the Earth and she says, "Have you seen my power Gaia? [[NoOneCouldHaveSurvivedThat Life on this planet has ended!]]"]]
* FamilyUnfriendlyDeath: Is seeing small dinosaurs being swallowed by carnivorous plants bad enough for you? How about seeing [[spoiler: dead dinosaurs with blood coming out of their eyes?]]
* {{Kaiju}}: One of the bad endings has you evolved into this.
* MultipleEndings: The game has a couple of bad endings that are usually achieved by making "wrong" evolution choice. It's not too hard to figure how to trigger them. Some others are triggered by making wrong choices in the game.
* OneWingedAngel: [[spoiler: Lucifer]] has one and it's quite ugly, [[spoiler: like her favorite one has her flesh melted off]]. Taken at a whole new level at the end of the game where [[spoiler: she pops out of the moon, [[AttackOfThe50FootWhatever breaking at least a quarter of it]]]].
* [[spoiler:{{Satan}}]]: In this game, we have [[spoiler:Lucifer]], who for some reason bears some resemblance to MarilynMonroe.
* StylisticSuck: The images for the bad endings are not as detailed as the one used for the story scenes in the game. Probably justified as those endings are PlayedForLaughs. [[TheEndOfTheWorldAsWeKnowIt Usually.]]
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