That One Level/Video Games/Survival Horror

Examples of in  games include:


 * Obs Cure: The Aftermath sort of does this with Mei's sister, Jun. It's almost painful enough
 * In Resident Evil Code: Veronica, there is a sequence where you're forced to run away from a giant mutant zombie chasing you down a hallway while swinging a giant axe. It's extremely difficult to avoid getting hit, and if you're low on herbs/first aid sprays, it's practically impossible to pass this part since one hit knocks your health from "Fine" to "Danger", and you move slower as you get hurt. Restarting the game is painful as well since this sequence happens late in the game.
 * In Resident Evil 4 you get the "Water Room", a water-themed, three-part Platform Hell which you must navigate from one end to another while fixing a bridge you shouldn't have to in the first place and sniping respawning enemies from afar who will otherwise provide you with a sudden game over should you fail to protect the president's daughter, which you have to do at all costs, at all times. Oh, there's also the zombie zealots throwing instant death at you. Everything is quite literally trying to kill you. The fact that the level is water-themed may qualify as an Under the Sea level, considering how infamously difficult those are.
 * There's also the first fight againt Jack Krauser, which is one big Quick Time Event that results in instant death should you press the wrong button at the wrong second. Although you frequently deal with these throughout the game, this fight strings so many of them together that the result is an arduous Unexpected Gameplay Change. The fact that the buttons are randomly generated each time doesn't help much. However, this is probably a case of That One Boss since the spiked difficulty doesn't carry over to the level itself.
 * Silent Hill 4: The Room famously leaves players stuck in the "Water Prison" level because of That One Puzzle, which is light-based and requires the use of improbable logic to solve it. Throw in an Escort Mission, a Puzzle Boss and the invincible ghost of an undead vicious serial killer during a revisit and it nicely sums up the appeal of the "Water Prison". The fact that half of it seems to be buried underwater grants it an Under the Sea difficulty setting.
 * The Thing has a stage almost identical to Metal Gear Solid's staircase sequence, except you're going down, there are automatic turrets on every level (that can take up to five grenade hits to destroy), scalding steam vents, seemingly endless streams of scuttling creatures that pop out of dead bodies (and attack you from front and behind), and the medic, your only hope of surviving the stage, turns into a monster at random points. If you don't have enough health packs on you, or enough firepower, it's impossible to get through the stage.