- Anvilicious: The series is not subtle at all with its message of carrying on instead of taking the easy way out. While being a part of the Colloid gives the vulnerable some measure of comfort before their consciousness melds with the rest of the structure, the most prominent characters do not agree with the action, are confused and skeptical of the Colloid using itself to create a new universe, one that some who enter it hope they can have more favorable circumstances in, and when faced with either human struggle or the choice to go, extra emphasis is put on the people who refuse to join them.
- Awesome Art: Believe it or not, the attention to detail is amazing. One may not get it due the Only Six Faces trope, but the clothes, cities, weapons, attention to the accessories, skin tones, etc. Make the simplistic faces contrast a lot with the really detailed pages.
- Critical Research Failure: Mustard gas is a blister agent, but the chemical attack in volume 2 has symptoms similar to a nerve agent or a pulmonary agent. Even the most rudimentary knowledge of chemical warfare, or WWI, or Unit 731 should have prevented this mistake. In-story, one might wonder who the hell uses mustard gas to knock out a dog, since mustard-gas is slow-working...
- There's more problems. The vegetation growing in cities is problematic in appearance, mostly because plants tend to overgrow everything fairly quickly if not kept short. And 'everything' means that trees can grow on top of a building if there's a possibility for that. However, as plants require light, they will not grow inside buildings unless natural light can reach them. The roads overgrowing with grass are another problem. Why aren't there clumps of asphalt visible between the patches of grass like on a real overgrown road? Why don't the characters stumble while walking on such a road, because it is nigh impossible to see where the road is destroyed and where it isn't?
- Also, the characters in the early chapters seem remarkably clueless with regards to survival in the wilderness without any possibility for support from civilization..
- Darkness-Induced Audience Apathy: It can be hard to get invested in characters sometimes due to the fact that basically anyone not named Elijah could be killed off unceremoniously at any time, and most do.
- Moral Event Horizon: These are crossed on a regular basis.
- Nightmare Fuel: Starts on page 16, with giant bugs crawling out of a closure virus victim's body, and just keeps on going from there.
- Replacement Scrappy: Some western readers were not fond of Miriam taking Helena's place as Elijah's Love Interest, especially for certain questionable decisions in her character arc and her completely opposite circumstances (Helena took charge and had sexual experience, while Miriam was a virgin who is led around by Elijah).
- Squick: Goes hand in hand with the gorn. Elijah gets his own moment when Helena throws her semen-filled underwear on his face, telling him to go clean off the residue left by her latest customer.
- The Woobie: EVERYONE, take your pick, Elijah, Helena, Miriam, Ennoah, Kenji, Sophia, Keel, pretty much, everyone has a shitty past, and a shitty life. Don't even forget the senseless deaths of Helena, Mana, and many, many more
- Tear Jerker: There are many, but The new Big Bang, together with Ennoia's death, while People Get Ready is in the background, it's both amazing, sad and heartwarming, words can't describe it.
YMMV / Eden: It's an Endless World!