Only Idiots May Pass

""You'd think we could just leave this guy frozen solid, chisel off the mask, and call it a victory for the forces of good. But Link likes to do things the hard way, so get Arrows and Magic Pots from the pots if necessary, then let loose a Fire Arrow.""

- Casey Loe, Versus Books' The Legend of Zelda: Majora's Mask Strategy Guide

Sometimes, you have to go down the wrong path before going down the right path. Literally, you have to, even though you may already know which way is the right way.

This is a relative of Stupidity Is the Only Option. The difference is that, instead of the character needing to become an idiot to advance in the game, we're talking about the player.

For example, say you need the flamethrower to melt ice cubes. The end of Path A is blocked by ice cubes which you can't melt yet, and Path B leads to the door that allows you to continue on with the game.

Now let's say that the door at the end of Path B is locked, and the only way to open it is to trek down Path A and take a good look at the ice cubes blocking your path. Do this, and a scripted NPC or something will come through the door in Path B, unlocking it for you.

This might not seem like such a bad idea at first, especially if the game is exploration-based. Maybe it's your first time looking at ice cubes, or maybe the game wants to make sure you mark that blocked passage on your map. A worse variant is if the door down path B is locked with a seemingly solvable combination lock puzzle, causing you to fruitlessly try and unlock it for ages, ignorant of the fact that only visiting the dead end will cause the puzzle to actually unlock the door.

However, if you think about it, the game is always assuming you're playing for the first time, and therefore, do not have prior knowledge of the game world or events within. If this is your second or higher playthrough, you may remember which path is which and try to cut directly to the proper path. Unfortunately for you, you're not going anywhere until you get to the very dead-end of the tunnel and trigger the script that opens the door. Nice try, though.

And let's not even imagine how pissed you'll get if you forgot what arbitrary condition triggers the Event Flag that makes the door open! it would become Solve the Soup Cans at its absolute worst.

A specific form of the Broken Bridge. Could be a form of You Can't Thwart Stage One. See also Stupidity Is the Only Option.

Contrast Only Smart People May Pass, Only the Worthy May Pass.

Action

 * In Metroid Prime 3: Corruption, there was an energy generator which you needed to call your ship in to destroy - which was guarded by two glaringly obvious anti-air cannons. The forward path would not open until you foolishly called your ship in for a bombing run, getting it damaged and having your advisor inform you that you first need to disable the cannons.
 * That same sequence provides a second example, in that the doors which quite obviously lead to the two cannons you have just been told to destroy are locked. Nothing the player does will unlock them, and they can't be opened until the player gives up and tries to leave; at that point, the doors open up so that enemies can come through and attack you.
 * Sequence breaking in Metroid: Zero Mission? After pulling off a series of bomb jumps to bypass getting the power grip, a barrier that can only be destroyed by bugs not found in the area is put in front of the door.
 * Bioshock has some annoying examples of this in the latter half of the game where you are required to salvage certain items from certain dead enemies in order to proceed, except that the items won't appear on the corpses until you are informed of this. It becomes annoying when the bodies disappear after being dead for several minutes and they happened to be the tough Big Daddies, forcing you to find and kill more of them. (Fortunately, a new one will always spawn some time after they are all killed.)
 * Call of Duty: Modern Warfare 2 has one in its third mission.
 * Even worse, however, is in the end of that level.
 * A more annoying example occurs in the Gulag level: You have to fight all the way around the cell blocks and survive the ambush in the armory rather than just rappelling down the wall to the ground floor.
 * When you find the pirate ship docked at Windfall Island in The Legend of Zelda the Wind Waker, the first logical step would appear to be to board the ship and see what's up. Entering the ship requires you to give the password, a horribly punny answer to a pirate riddle. It's possible (and, in some cases, quite easy) to guess the password, but you'll still be turned away unless you've visited the secret entrance to an unremarkable building in the city and overheard the password yourself. The game Hand Waves this by implying that you need to say it "exactly right" (inflections and all, apparently), but would it really have been that difficult to just have a generic "Say the password!" statement in place of a riddle that any intelligent player would try to solve?
 * Not quite as bad as it sounds, since Tetra is supposed to notice you sneaking around (and thus deliberately set up Link's "theft" of the much-needed bombs).
 * Once you first reach Kakariko Village in Twilight Princess, the leader of the village tells you that the path up Death Mountain is guarded by Gorons and tells you to stay away until the situation is resolved. Zelda games in recent years have used the (possibly warped) Aesop "it's better to be courageous than to listen to the sound advice of others" more frequently, but this is a particularly noticeable example. After all, the only way to advance the plot is to head up Death Mountain anyway, get stopped by the Gorons, get knocked off the mountain, and give up on trying to climb it. It also doesn't help that the next step to bypassing this obstacle is for your horse to show up in town completely by chance after your failure.
 * Averted in the remake of Ninja Gaiden, where various number combinations and Plot Coupons can be used without having to activate the "informing" event.
 * In the original Metal Gear 1987 port on the NES, you can't blow up the supercomputer until you're told by the professor that you have to use plastic explosives, despite the map that came with the game clearly showing that you needed to use... plastic explosives. Rescuing the professor requires going through a maze forest that you are given no hints on the proper sequence, you just have to keep guessing. There's a trick around having to do this though -- if you immediately go right in the computer room you'll glitch into the big boss room.
 * Replaying Okami? Don't attempt to skip anything. You have to do EXACTLY what Issun tells you to at the beginning or you won't progress. You can't just go up on the deck and draw the sun, you have to walk DOWN and look around until Issun says to go up on the deck and get a good look.
 * Vivisector: Beast Inside has a very straightforward example of this: to progress, you have to activate a series of checkpoints. Your radar can only pick up on the next checkpoint by activating the previous one. Almost every checkpoint in the first half of the game is situated in a clearing usually lined with hidden fences or other barriers, obviously setting you up for a trap. Therefore, you have to trigger the trap to progress.
 * Fatal Frame takes it to a whole new level. At one point in the second game you need to find a key to free your sister from a cell she's locked in. The game explicitly tells you which house to look in but doesn't allow you to find the key without talking to Itsuki first and letting him tell you where exactly the key is. The worst part? If you're replaying the game, you are still supposed to talk to him in order for the key to appear.
 * Sheep, Dog 'n' Wolf had one level where you have to use a flute to hypnotize Sam the sheepdog. In the next level, the flute is available again, and it seems that using it is the only way to get into Sam's area. However, attempting this reveals that Sam now wears earplugs and earns you a KO. Only after you recover is it possible to get to the sheep you're supposed to steal without using any items.
 * The Left 4 Dead series is full of these. The survivors know that certain things like emergency exit doors, rusty elevators, etc will make ton of noise and attract hordes of zombies, but they activate the things anyway to proceed.

Adventure

 * In several poorly written adventure games, it's not possible to pick up some items until your character knows that he will need them - this in spite of the fact that in different parts of the same game (as well as in adventure games in general), the point is to pick up every single thing, just in case. An example is the remake of King's Quest III; the original is more flexible and does not have this problem.
 * At one point in King's Quest VII, you need to place sulfur into a hearth to knock out the blacksmith and access his tools. However, even with sulfur in hand, the game won't let you do it until you overhear a couple of characters in another room gossip about how it can be used for this purpose.
 * Snatcher does this far too often, but by far the worst instance is a painfully obvious hidden passage in the hospital that you cannot "discover" until the plot allows you to.
 * Despite the fact that everybody knows that the password is "Ken sent me" in Leisure Suit Larry, the player has to jump through all kinds of hoops to read it on the toilet wall. Only after that can it actually be used. That is, in the VGA remake; in the original, you can just type in the sentence whenever you feel like it.
 * In Shadow of Destiny, one level requires you to look at a locked door before getting the idea to find a key. Fine, makes sense. If you die during this level, you will have to replay and, again, must look at the door before trying to get the key. Except that the premise of Shadow of Destiny means that the main character is well aware he's tried this once already.
 * The aversion in the original Myst demonstrates why this trope exists. Not only is it possible for anyone who's played the game before (and remembers the codes, I guess) to finish the game within minutes, but it's possible to enter the endgame (and even complete it!!) simply by brute forcing the . The characters will then refer to plot points you haven't discovered yet, and attempt to take from you Plot Coupons you haven't yet acquired. If you continue on through the endgame, you   However,
 * Myst didn't learn from Alpine Encounter. You could short-circuit the entire plot by and I have a feeling that's not the first game either.
 * Hotel Dusk: Room 215 does this frequently. You have to do things in a very specific order, including learning how to do OTHER things you need to do. One particular room had several relatively straight forward puzzles to solve and an invisible timer. Solving the puzzles (using the game logic) is easy enough, but the game requires you to do things in a specific order and particularly read in an in-game book how to solve said puzzles. Simply 'knowing' isn't good enough.
 * In the Infocom game Wishbringer, you must get past a guard Hell Hound to enter a house containing a few key items. The trick is to read a note from the house's owner to your boss, telling him to say "Heel, Alexis" to the hound. If you try the line without having read the note, the hellhound apparently decides you were just guessing and doesn't stand down.
 * In the (unfinished) Amiga game Muscarine or Erica's Trip a sage asks you to bring him green snow, which at first seems an easy task as you can see three differently colored snow-clad peaks from outside his hut. However, when you get up in the mountains it turns out there is no path leading to the green peak. Only after you have tried cheating the sage with a mix of blue and yellow snow, does he give you a hint about the real solution
 * Played straight and averted in 999. In the first puzzle there are 2 briefcases that need a key and a code to open. The room you're in has 2 notes as a hint for the code. However if you know the code already you can just input the code after inserting the key and open it. Keep in mind the room you're in is being filled with water(though only in plot). Later in the kitchen, the key you need is in a cabinet door that needs a passcode, the game will not let you enter the passcode and one of the characters you are in the room with will say along the lines "Don't mess around with that if you don't even have a hint", however to get the hint you have to get yourself trapped in the freezer and almost freeze to death.
 * Escape From St Marys: A game-in-a-game requires a specific sequence to win. The sequence is the same with each playthrough, but it fails to work until your character has finished some irrelevant stuff elsewhere.

Role Playing

 * In Dragon Quest VII, there is a Groundhog's Day town, where the day resets every time you stay at the inn. The obvious solution would be to talk to the time/clock master, but he won't say or give you anything helpful until after you have talked to a certain bridge construction worker twice. There are no hints suggesting that talking to a construction worker twice will help you in your quest, and the construction worker only tells you to talk to the time/clock master.
 * Earthbound uses and abuses so many event flags that it's hard to tell if it is lampshading the practice or if it is one of the most notable victims.
 * The most blatant example occurs early in Threed, home of the game's designated Zombie Apocalypse. Exploring the town, you may find that zombies are guarding part of the cemetery after fighting your way through it. Scratch that. You have to find them, and allow them to notice your presence, in order to advance the plot. (Said plot advancement consists of )
 * Apple Kid's very existence is built on these. In his first appearance, he will not build the device necessary to bypass an early barrier until you have already traversed a cave and reached the area where you cannot proceed any further. Later examples are just as arbitrary, but not as pointless.
 * After successfully completing a sidequest involving the Runaway Five, you are informed that a department store has opened in Fourside. To advance the plot, you must enter and leave the establishment, at which point At that point, you will be able to visit a café that you may have visited earlier. But now, talking to people inside triggers a sequence where  Then you can go back inside and look at a seemingly blank wall you couldn't reach before to... you know what? Let's just call Earthbound an Event Flag Plot and be done with it.
 * Subverted in Lunar: The Silver Star. Before Alex and his party can go inside the White Dragon Cave, they have to get past a large block of ice, but none of them knows any magic that can get rid of it. By examining the rock, Ramus will mention off-hand that his old man has a ring that will do the trick. Normally, this would mean backtracking to Burg to get the ring from the cabinet, but you can actually go to Ramus' house and get the ring before you even go into the cave. In the Silver Star Story remake, Ramus brings the ring with him anyway.
 * Diablo II has a quest where you must touch five cairn stones in a certain order. The correct order is given on a particular scroll. You don't need to read the scroll; brute-force guessing works fine, as long as you have the scroll. Without it, the cairns do nothing no matter how much you click them.
 * I interpreted this as having the scroll tell you how the cairn stones are activated, with the order just being a bonus.
 * Late in Neverwinter Nights 2, there are five statues in Arvahn that you must visit to complete the Ritual of Purification. One of them is actually located in the Swamp Ruins, the second area you get to visit in the beginning of the game (only in the early game, the door leading to it is blocked). However, by Act II, the ruins disappear from your global map, and going to the intact West Harbor won't bring you there. Instead, you have to enter Arvahn, at which point West Harbor is instantly destroyed in your absence, visit the other four statues, and then enter a portal to the ruins of West Harbor. And if you decide to do this quest before recruiting Orlen for Crossroad Keep... well, bad luck, he's Lost Forever.
 * Mega Man Battle Network enjoys doing this greatly. Across the series, there are too many to list.
 * In Breath of Fire 2, most of the early game is spent chasing after a bat-winged girl, so as to bring her to justice in your town. When you finally locate her, locked in plain view in the dungeon of a castle, the game acts as though nothing special has happened, since that is the location of an arbitrarily necessary quest. But the current state of affairs there is not urgent in the slightest, and the local ruler states that anything at all would be a perfectly fine reward for your troubles in getting there, like, oh! the extradition of a wanted thief? But no, you have to do the absurd castle quests first, and THEN your character will randomly remember what the heck he ACTUALLY came here for all of a sudden, and ask for the prisoner milling about in plain view (who's all too glad to come along, owing to the Cool and Unusual Punishment she's been suffering the whole time.)
 * In Chrono Trigger, there is a point in the future where you must fight a boss, then read a note in the next room that describes a rat that looks like a statue, saying it knows the "secret of the dome" (namely, how to get to the area you need to go to advance the game) which you can learn by chasing and catching the rodent. You will spot the rat before fighting the boss, but you still can't chase him until you read the note. You also can't use the secret (which is simply holding L and R while pressing A at the terminals that control the platforms in the first room) until you catch the rat, even if you know exactly what to do.
 * In Paper Mario: The Thousand-Year Door, after steals your identity, you have to go all the way back to Twilight Town with no partners, running into your foe along the way, who asks you to guess his real name before challenging you to an unwinnable fight (he'll take no damage). Oh, and you can't get the name right because there will be a letter missing from your input screen. You have to ignore what he says about you not being able to run away, continue on, get a new party member, run away from the identity thief again, and trek all the way back to go into the dungeon you just came from through a new entrance with your new party member, allowing you to pick up "The Letter P" from a chest, and also to listen to a parrot say the enemy's name. Note also that a capital P was available to you originally, but the lowercase wasn't. Next, make the long and annoying trip yet again, do your Rumplestiltskin thing, go all the way back to the dungeon again, and beat the (not-really all that hard) boss for good.
 * Another in The Thousand-Year Door comes in early when someone loses their contact lens and tells you not to not to move or you'll step on it. Which WILL happen no matter how little you move, and they'll never find their contact in one piece no matter how long you wait.
 * Super Paper Mario has one as well, in fact, if you continue to annoy the bad guy she explains flags for you...
 * In Terranigma, the only way to reach the end of the end half of the Eklemata level (when you succeed in resurrecting humankind), is to first go into a cavern, slide several hundred feet down an ice-coated slope, and cause an avalanche, temporarily trapping you in (and opening the path from where you had previously been to the end of the level). A good-natured mountain-goat makes a way for you to escape and resume your quest, thankfully.
 * In one of the side episodes of Pokémon Mystery Dungeon: Explorers of Sky, Team Charm explores a famously impenetrable dungeon. At one point they face a branching area with a path on each side. There's a third path in the room, requiring the explorers to walk through an illusionary wall, but it'll be nothing more than a standard wall until you've already taken both other paths.
 * A glitch in Dragon Age II resembles this trope. In the questline to recruit Isabela, at one point you're ambushed and you need to kill all the enemies. You need to wait for combat to end for a few seconds for Isabela to tell you that it was trap and that you should search the leader's body, but by this point, looting enemies immediately is probably second nature. If you loot the body before she tells you to, this can cause the game to not register the fact that you already looted the item you need, preventing you from entering the Chantry to continue with her quest. At this point, you're either forced to reload your game (which is particularly bad if you haven't saved it in a while), or continue without Isabela, making her Lost Forever. So in this case, you have to wait for her to bring it up before looting, or else you get this trope, albeit unintentional from the developers.
 * In Final Fantasy VIII, Squall and two party members are taking the elevator to Balamb Garden's maintenance level when the power goes out, stopping the elevator between floors. With the power out, obviously the control panel isn't going to do anything, but the game won't allow you to open the clearly-visible emergency hatch in the floor until Squall has first prodded the buttons of the panel anyhow and concluded that, no, it's not responding.

Real Time Strategy

 * Command & Conquer: Red Alert has one in the penultimate Soviet mission; the primary objective is to capture the Allied Chronosphere with an Engineer. Because of a glitch in the original PC version of the game, actually doing this will cause the Chronosphere to explode and terminate the mission. The player has to deliberately fail by blowing up the Chronosphere without capturing it in order to advance.
 * The Windows version may be even worse:
 * In the antepenultimate mission, your objective is capturing the Chronosphere, but if you do the mission immediately fails with no explanation (it doesn't even explode): What you really have to do is destroy the enemy base and the chronosphere with it.
 * In the penultimate mission, you have to capture three battle labs to disable the Chronosphere's self-destruct. Then it explodes anyway for plot reasons, mission accomplished.

Web Comics

 * Parodied (inevitably) in Adventurers!