The Conduit/YMMV

Awesome Music: The title/menu theme.
Doing It for the Art: The Conduit started development without a publisher (meaning they had nobody to actually sell the game to stores yet) because High Voltage Software were sick of what they felt was other developers ignoring the Wii in favor of other home consoles, despite the Wii's overwhelming popularity across all demographics. From the interviews and the extensive soliciting of ideas and feedback, it's clear they were thrilled to finally get to do it for the art.
8.8: GamePro and GameSpots reviews have been pretty controversial. Complaints include reviewers basing their score off of the single-player campaign and lack of split-screen multiplayer while admitting they ignored the online multiplayer mode, and some harsh criticism of the default controls without noting that every aspect of the controls can be customized.
Epileptic Trees: They started to show up once people analyzed the meanings of the secret messages hidden in the various levels (see Shown Their Work below).
Goddamn Bats: The little alien creatures that pour out of the pods (guess they're called "Mites", first seen in Mission 4) are very annoying and very fast. The red ones also explode, meaning you have to take them out from a distance. You can chew up a lot of ammo just trying to keep the little buggers at bay, plus even more ammo destroying their pods so they don't keep coming at you while you try to figure your way around the area.
Hype Backlash: Before the game came out, High Voltage claimed that the game's graphics were equal to 360 launch titles. Critics were... less than impressed. While the game eventually did get above-average reviews, it was mostly because of the customizable controls and online play, not the graphics.
Memetic Mutation: The phrase "Has anyone really been far as decided to use even go want to do look more like?" first came up in a 4Chan thread on this game. The thread was immediately derailed.
Player Punch: The whole game, you start to get attached to your ally, Prometheus. Then it turns out that he's the template for the Drudge, and you have to kill him to make sure that no more are created. And then, at the end of the next (and final) level, you find out he uploaded his consciousness to the ASE.