History Characters / TheEternalCylinder

* SpottingTheThread: If the player has a keen eye, they can tell something is not okay when they suddenly find a new Trebhum out of nowhere.

!![[spoiler:Corrupted Plains]]

* CarnivorousPlant: They're plants that prey on small animals. And they also move.

* BigCreepyCrawlies: They're gigantic arthropods that bury themselves in the sand, and they're able to rapidly extend and grow protuberances so their bug-like heads can move. The in-game database reveals that Trebhum believe them to be some kind of CarnivorousPlant.

* UnwittingInstigatorOfDoom: [[spoiler:It was the Trebhum's fault that the Eternal Cylinder came to their world. Long ago, when they were an evolved civilization, the Trebhum made floating machines to sing to the stars to meet other alien races. One of these songs reached the ears of the Celestial Trewhaala, and they lived in harmony, but their song drew something else: the Eternal Cylinder. The Cylinder, offended by the Trebhum's melody, came to the Trebhum's world and started absorbing everything in its path. With the help of its servants, the Cylinder steamrolled through the planet and drove all those that inhabited it to the brink of extinction]].

* EasilyForgiven: [[spoiler:While it was the Trebhum's fault for accidentally summoning the Eternal Cylinder and almost bringing their race to extinction, the Celestial Trewhaala don't hate them. The Trewhaala don't regret listening to the songs of the Trebhum as they brought them to their world and allowed their races to live in peace. The Trebhum brought the Trewhaala hope; for that reason, they don't hesitate to help their old friends during the latter half of the game, even when they're on the brink of extinction]].

* UnwittingInstigatorOfDoom: [[spoiler:The Trebhum accidentally brought the Eternal Cylinder to their world. Long ago, when the Trebhum had an advanced civilization, they used their sky palaces to sing to the stars. One of these songs brought the Trewhaala to the Trebhum's world, and the two races lived in harmony. Unfortunately, the Trebhum's song also brought the Cylinder to their world when it heard them, offended by it. The Eternal Cylinder proceeded to steamroll the Trebhum's world, killing and assimilating countless Trebhum and Trewhaala, leading to both races on the brink of extinction]].

* CripplingOverspecialization: Their icy armor and response to heat makes them amazing predators in a cold environment, but at the expense of being unabel to function in any other locale -- they'll overheat in the Savannah, to say nothing of the Desert. The in-game database [[LampshadeHanging notes this]].

* TooDumbToLive: Are known to kill themselves by grabbing Trebhum with the Cylinder Body mutation, resulting in them succumbing to CollisionDamage.

* UndergroundMonkey: They're essentially blue-sacked tonglegroplets. Unlike their Savannah dwelling cousins, though, Blue Tonglegroplets carry a sac that provides the Mixer body mutation, which converts uneaten objects in [[StuffBlowingUp various types of bombs]].

* MonsterMunch: They frequently fall prey to Tripobosh. Vuushlop will also try to hunt them, but [[EpicFail they will always aim to high and miss them]].

* FreeRangeChildren: It's made very clear that the Trebhum you play as (at least in the beta for now) are newborns (you outright ''hatch'' new tribe members throughout the game), and aside from the occasional elder (Who even then, are too old and weak to accompany them), they have no adults to guide them. This is {{Justified|Trope}} by the implication that the adults have died off due to the actions of the cylinder and the only thing resembling a parental figure for them to look up to besides the elders is their inner voices (Which is implied to be a HiveMind) providing them memories.

* XenophobicHerbivore: Tonglegroplets do not appreciate their personal space being invaded. Unlike adults, though, they won't actively hunt the Trebhum and can be repelled via the Deimatic Trunk mutation.

* FloatingEye: Aesthetically, they resemble this, with their camera lens looking distinctly like a human eye.

!![[spoiler:Corrupted Plains]]
[[folder:Yackfurt]]
!Yackfurt
!!''Encephalobumbulum miserabilis''
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/yackfurt.png]]
A slug-like herbivore, docile on its own, but aggressive in groups.

* MixAndMatchCreatures: Amalgamates traits of the Grollusc and Onkifurt, having the former's body shape and demeanor and the latter's ability to produce toxic gas.
* SavageSetpiece: Mess with them only if you want to get sprayed with poison gas.
* SuspiciouslySimilarSubstitute: It fulfills the role of the Grollusc in the ??? Biome, being a somewhat uncommon herbivore that has a specialized defense to deter predators and Trebhum. Note that you can still find Grolluscs in the ??? Biome, but they are far rarer than Yackfurt.

[[folder:Roondaslock]]
!Roondaslock
!!''Gyroglossus prodigialis''
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/roondaslock.png]]
A strange, round sphere-bodied predator that propels itself via pushing off the ground with its tongue.

* ArtifactMook: Actually {{Inverted|Trope}} - it could be ecnountered in the Savannah during the beta, while in the final game it is relegated to the final biome the player encounters.
* BeTheBall: Its body is best described as a ball covered in eyes and mouths.
* DumbMuscle: Even though it is covered in eyes, it can often be seen throwing itself into toxic pits.
* EarlyBirdCameo: While it is intended to appear in the final, mystery biome, one or two can be found wandering the Savannah in the demo.
* ExtraEyes: Literally has eyes all over its body.
* MultipurposeTongue: Its tongue can be used to grab prey or for propulsion by pushing the creature off the ground.

[[folder:Grashtuub]]
!Grashtuub
!!''Tubus Maximus''
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/grashtuub_model.png]]
A tube-shaped scavenger with a massive body.

* BizarreAlienBiology: Its entire digestive system is exposed to the air, yet it is still able to eat things normally. A look inside its body reveals that it is essentially an organic butcher shop, having rows of teeth that rotate so that they can slice up the meat of their prey.
* ChestMonster: Somewhat -- it is clearly a carnivore that will eat you, but the Grashtuub tends to have valuable transformation items within it.
* ExtraEyes: Has multiple eyes all over its tube-like body.
* {{Kaiju}}: A video of one released on ACE Team's twitter reveals that they're of comparable size to the Great Gaaahr.
* NonMaliciousMonster: They look unnerving, but Grashtuub aren't actually aggressive, and the first one encountered can only harm your Trebhum by accidentally stepping on them. The others you encounter have been mind-controlled by Unifiers and thus aren't fighting of their own free will.
* ScavengersAreScum: They're primarily scavengers, and the Trebhum do no like them, both because Grashtuub look terrifying and they eat the corpses of Celestial Trewhaala.
* TrademarkFavoriteFood: Celestial Trewhaala -- the reason Grashtuub are shaped so bizarrely is so that they can eat Trewhaala whole (or at least do so rapidly). [[spoiler:This is why the Trebhum have to fight one - they need to get a Trewhaala Crystal from the Grashtuub's heart so that they can call a Trewhaala and use it to reach their Sky Fortress and finally give the Cylinder the slip.]] [[AllThereInTheManual That being said, the compendium states that they will eat other large animals (namely Great Gaaahr)]], they just aren't encountered anywhere where this can be observed.

[[folder:Squadaboo]]
!Squadaboo
!!''Kakistoteuthis terriblis''
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/squadaboo_model.png]]
A squid-like predator capable of mind control, which leaps out of the water to grapple into prey. The hapless animal is then marched to its doom beneath the waves.

* MonsterMunch: They frequently fall prey to Tripobosh.

* ClassicVideoGameScrewYou: If you're really unlucky and get captured by one of these guys who has a nest outside the border, they can activate the Cylinder against your will.

* {{Cyborg}}: Their bodies are composed of a combination of various mechanical bits attached to human body parts. It [[UncannyValley unsettling, to say the least]].

* WhoEvenNeedsABrain: An [[UncannyValley unsettling example]] -- their cranial cavities are hollow and clearly lack any brains or equivalent organs/components. Instead, they carry either a Witness or an object of interest to the cylinder -- either a Trewhaala crystal [[spoiler:or a Trewhaala mutation catalyst]].

* RocketTag: [[spoiler:The final boss of Chapter 2, Across the Snow, is a Unifier examining Trewhaala crystals. To defeat it, you need to catch the crystals it heats and fire them back at it to gradually destroy the Servant. The one encountered as the penultimate boss of the game can also be fought this way, but you're encouraged to [[ActionBomb use the explosive body mutation to take it down instead.]]

!!Desert

[[folder:Great Gaaahrs]]
! Great Gaaahrs
!''Aerotherium camelopardalis''
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/great_gaarh.png]]
[[caption-width-right:350:[[labelnote:Infant Gaaahrling]]https://static.tvtropes.org/pmwiki/pub/images/infant_ghaaarling.png[[/labelnote]]]]
Huge, imposing land animals that stride around open areas, sucking up whatever matter it can find.

* SeldomSeenSpecies: Their appearance seems to be based upon ''corals'', of all things.

* WhiteVoidRoom: [[spoiler:This is how the Mathematician's mindscape is represented, and is accessed via the portal in the Mathematician's head. The first time you enter, the room is mostly featureless, barring a pathway for the Trebhum to follow. The second time, the room becomes much cleaner and is arranged like a small town/city. During the third encounter, the area is in disarry due to the Trebhum appearing to kill the Mathematician, with strange, oddly colored plants breaking up the monotony.]]

* ArtisticLicenseBiology: The life cycle of the Tonglegrop, with herbivorous juveniles and carnivorous adults, seem to be based on frogs, whose tadpoles graze on algae but as adults eat insects and small animals. However, with a creature this size, it would make more sense for it to be the other way around: young need to grow fast and would benefit from a nutritious protein-rich diet, while adults would need a more abundant food source to sate their bulk now that they have reached full size.

* TheNoseKnows: Since they rely on their three noses to sniff out prey, they're pretty good at tracking down nearby Trebhum and other prey. While in the beta there was no way to throw them off your scent, the full game has special plants that produce an odor that repels the Tripobosh and resets their tracking of you.

[[folder: Foosh]]

[[folder: Ocular Orthopods]]

[[folder: Blue Omnogroms]]

* ThrowDownTheBomblet: Gaaahrs have the ability to produce and expel organic explosives from their bodies as a means of defending themselves. Juveniles take this to GrenadeSpam levels, as ''they will not stop making these bombs while they are alive''.

[[folder: Onogrosh]]

[[folder: Desert Tonglegrops]]

* RocketTag: [[spoiler:The final boss of Chapter 2, Across the Snow, is a Unifier examining Trewhaala crystals. To defeat it, you need to catch the crystals it heats and fire them back at it to gradually destroy the Servant.]]

* WhoEvenNeedsABrain: An [[UncannyValley unsettling example]] -- their cranial cavities are hollow and clearly lack any brains or equivalent organs/components.

* SchmuckBait: The game makes it fairly obvious that the lens the Hand is hiding under will involve a boss fight - the narrator notes that the Trebhum are scared of what servants the Cylinder might throw at them now, the Lens is the only one that doesn't have some other challenge you have to solve to beat it, and it's buried such that you won't be able to get off of it until the lens is already in flight. But you still need the lens to escape the Cylinder, so you have to activate it.

* TheConstant: Tonglegrops and their various life stages are so far the only creatures that can be found in every biome -- variants of the Tonglegroplet and the Tonglegrop can be found in the Tundra and the Desert, respectively, and Glickbol can be found in the Savannah, Tundra, ''and'' the Desert.

* HeWhoFightsMonsters: When first getting the Mixer Body mutation, the Trebhum fear that with their newfound power to push themselves up their planet's food chain, they would invoke this trope and become just as evil as the Servants of the Cylinder.

* NotCompletelyUseless: Glickbol heads give one of the few detrimental mutations in the game, temporarily making any Trebhum that eats them legless. However, if you have a Trebhum with the mixer body mutation, you can use Glickbol heads to create energy bombs, the most powerful bombs available from said body. Additionally, the heads also provide health, making them an option for healing if you are somewhere far away from danger but need healing badly.

* ArtisticLicensePhysics: Their ability to absorb energy by heating rocks implies that Foosh can actually break the law of conservation.