History YMMV / StreetPassMiiPlaza

* AntiClimaxBoss: ''Mii Force'' ends with... GiantHandsOfDoom. And not done well; the boss can be beaten in less than two minutes if done quickly enough.

** From ''Mii Force'', there's [[https://www.youtube.com/watch?v=QWaPt71xwzs&list=PL997rjsj8no3D-Mtr_JjFqP0BUSc_3u7N&index=14 GB-1 Central Core]], which is the second to last level's theme and its amazing theme really pumps you up as you prepare for the final battle.
** The FinalBoss theme [[https://www.youtube.com/watch?v=uget7eLv0lg&index=15&list=PL997rjsj8no3D-Mtr_JjFqP0BUSc_3u7N Goldie VII]] is pretty spectacular too, as the theme goes perfectly with the tension in the air of the last battle of the game.

* CharacterTiers: In ''Mii Force'', Brown, White, and Light Blue shirts are better than other shirts. Brown and White can destroy purple plasma shots while Brown also gives a perpetual shield against physical attacks. The only drawbacks of Brown is that when it blocks a physical attack it launches you in the opposite direction, potentially into another trap and Brown shirts can be really hard to find. Light Blue shirts just have good range, rapid fire, damage, and destroy fire based attacks. While other shirts like Blue, Red, and Orange are good in general and other shirt colors are good in certain levels (2-3 for Black, 3-1, 4-1 and 4-3 for Light Green), Light Blue, White, and Brown are the best shirts to have on your ship during most levels of ''Mii Force''. They make arcade mode a bit easier. The only useless power is Dark Green. See TierInducedScrappy for details why.

** In Ninja Launcher, the helmet gear (which is often given from Miis that are a shade of green, or yellow) is harder to find than weapons or armor gear, allowing Green Miis to shine after years of often being a TierInducedScrappy.

** In ''Mii Force'', the weapons of Dark Green Miis (see TierInducedScrappy below).

* TierInducedScrappy:
** Dark Green Miis, whose abilities are practically useless in both ''Find Mii'' and ''Mii Force''. In ''Find Mii'', they double your next warrior's level. It sounds nice but unless you have a bunch of level 1's and the Dark Green is in front then it's worthless. In ''Mii Force'', Dark Green gives a bouncing ball which does bad damage unless bounced off an object, has bad attack radius, and offers no defense like Brown or White shirts do.
** In ''Warrior's Way'', people who have no street passes, thus their army consists of a single useless soldier.
** In ''Battleground Z'', people who somehow have no hobbies whatsoever are given a random weapon. The random weapon isn't the bad part. The bad part is that the weapons they give out are damaged and don't last long at all.
** In ''Mii Trek'', any Mii with only 500 steps. They barely give you steps to use and are gone in just a few seconds. Ironic in that this is better than the honest alternative, which can often be ''0'' steps.

* AnticlimaxBoss: ''Mii Force'' ends with... GiantHandsOfDoom. And not done well; the boss can be beaten in less than two minutes if done quickly enough.

** The Mii Plaza itself can also qualify. If you Streetpass someone while playing the Plaza, every time you finish a game, the Plaza will remind you that you have someone waiting for you at the gate. And if you do go to the gate, you lose every Mii you're currently using for the games and have them sent to the large group.
** If, for whatever reason, you have wireless communication on your 3DS turned off when you crank up the app, the game will pester you at every opportunity (such as when you travel to and from games or the plaza area itself) to turn your wireless communication on to be able to use Streetpass. It doesn't matter if you're someplace that forbids wireless-transmission devices, such as airplanes on some airlines.

** [[https://www.youtube.com/watch?v=HBCobfFCmzI "Save the World, Heroes!"]], the battle theme that plays in the later half of ''Find Mii II/[=StreetPass=] Quest II'', is just as adventurous yet urgent as a late game battle theme should be. And although [[https://www.youtube.com/watch?v=-V05vz9OJPw "Keep Fighting, Heroes!"]], the battle theme from the first half of the game, lives in the shadow of "Save the World, Heroes!", it conveys just the right atmosphere of tension for the newer, more ambitious ''Find Mii/[=StreetPass=] Quest''.
** [[https://www.youtube.com/watch?v=e_9fDnwrYlE The Dark Lord/Emperor's battle theme]] from ''Find Mii II/[=StreetPass=] Quest II'' is just the sort of adrenaline-charged track to which a battle on which the fate of the whole world rests should be set. Unsurprisingly, both this and "Save the World, Heroes!" end up remixed for ''Super Smash Bros for Nintendo 3DS''.
** Sadly for those confused by the lack of a "II" in the title of the ''Smash'' remix, the equally awesome [[https://www.youtube.com/watch?v=L-kyfQ6cakE final boss theme]] to the first game was ''not'' remixed in ''Smash''. A shame, as it has just the right blend of drama and intensity for a final boss fight (or pentultimate boss fight in ''Find Mii II/[=StreetPass=] Quest II'').
** "Venture Forth", the map music from ''Find Mii II/[=StreetPass=] Quest II'', [[https://www.youtube.com/watch?v=HGmDfHZOOdY is fairly unassuming at first]], but as you progress through the game and it adds [[https://www.youtube.com/watch?v=oPuSEtFGpxM more strings,]] [[https://www.youtube.com/watch?v=IV6Qzx5oJ4Q more drums,]] and finally [[https://www.youtube.com/watch?v=7Ksfj9zQIuo a trumpet fanfare,]] it sets a suitably heroic tone to proceedings that is sure to get your blood pumping.
** From Mii Force there's [[https://www.youtube.com/watch?v=QWaPt71xwzs&list=PL997rjsj8no3D-Mtr_JjFqP0BUSc_3u7N&index=14 GB-1 Central Core]] which is the second to last level's theme and its amazing theme really pumps you up as you prepare for the final battle.

** In ''Find Mii 2'' you can kill everything with a health bar using only swords. If you take your [=3DS=] out to a convention somewhere you can even take down the [[BeefGate Diamond Golem]] with pairs of level 1's in a couple of hours. It doesn't help that the game expects you to find out about the hidden functions of each magic spell through trial and error ([[GuideDangIt how were we supposed to figure out the slimes are weak to Yellow Magic?]])

** Any enemy that takes very little damage from your attacks, or uses any type of magic (e.g Fortifying Magic, Mirage Magic, Level Down Gas, Nullifying Magic) in ''Streetpass Quest 2''/''Find Mii 2''.
*** Armored enemies in ''Find Mii I'' render level 1 Miis without offensive spells useless. Unless you [=StreetPass=] the same people over and over (somewhat more likely at schools and college campuses and if you have people in your place of residence that also have [=3DSes=]), your squad of Miis for each run will usually consist of level 1 Miis.

** In ''Find Mii 2'' using Potions of Power, Dispelling Draft, and Team Attacks can pretty much destroy enemy gas effects and be enough to destroy tough adversaries without too much trouble. If you have an Orange Mii (or better yet two Orange Miis team up) and use magic to give their teammates extra attacks, combined with using other Miis to use Vial Of Valor to bring back people who have already attacked, even the FinalBoss can be defeated easily.

** Some of the potions you order in ''Find Mii''/''Streetpass Quest 2'' may turn out to be defective, wasting your hero and your Play Coins. Thankfully removed in the update that included the additional games, considering they're by far the most expensive thing that consumes Play Coins in any of the games outside of hiring additional troops in ''Warrior's Way''. Annoyingly, if you have a Mii use a all-hitting magic attack on an enemy that has created an illusionary copy of itself, and the attack hits said illusion enemy first, the attack is immediately cancelled out (like it would if a Mii hit it with a normal attack) and your Mii leaves, leaving the real enemy untouched when it logically should have been hit anyway. It's possible that this may be a bug with the way the illusion enemies work.

** ''Mii Plaza'': Gathering ''one hundred'' different streetpassers in a single day. Even within a crowded convention it'll take time and patience to accumulate that much!

*** Obtaining the "battle 300 visiting monarchs" plaza ticket. Depending on where you live, this can be almost impossible to achieve. And even in an area with lots of 3DS users, it can still take a very long time. This is also complicated by the fact the most frequent Streetpasses of Monarchs are Homepass users with a capped army, infuriating those who don't or aren't able use it.

** ''Find Mii''/''[=StreetPass=] Quest'' has a lot of these, mostly revolving around finding a Mii with the right ability at the right time. An update has allowed you to hire past heroes, however, alleviating the problem provided you've found at least one Mii with the needed shirt color, and a further update allows the player to pay the Helper Hare to clear obstacles, provided you've cleared them on at least one previous playthrough. Even so, there are still some hair-tearingly frustrating rooms:
*** Colored shields block all sword attacks except from heroes with a shirt of matching color. Magic goes around the shield, but at half damage. [[LuckBasedMission God help you if you don't have a friend to change their shirt into the color you need.]] The worst room of this kind is the first Forest of Sorrow room in the Secret Quest of ''Find Mii''/''[=StreetPass=] Quest 2''. It contains two green slimes, which cannot be damaged by magic and have absurdly high evade rates against sword attacks (but only 3 HP), and one of which is defended by a shadowlight shield, which requires a black/white team to break.

*** ''Streetpass Quest 2''/''Find Mii 2'' goes beyond the frustration of darkened rooms with fire rooms requiring two Dark Blue heroes to put out the flames, poison rooms that require two Yellow heroes to send away the poison, and ice rooms that need two Red heroes to melt the ice.
*** The Sealed Passage in ''Find Mii 2''[='=]s Secret Quest. It contains a powerful Mummy enemy and the Reaper General. The Mummy will scare away your Miis while the Reaper spews curse gas and has a defense of 2. And although you might think it would be best to get rid of the weaker Mummy first to save your Miis, if you do, then the Reaper will REVIVE it with full HP!
*** The Ransacked Ruins/Dolorous Deepwood route through the Secret Quest in ''Find Mii''/''Streetpass Quest 2'' could be described as That One Route. It features two rooms with enemies behind yellow shields, two poison rooms requiring two Yellow Miis each to get past, a room with two green slimes (one behind a shadowlight shield), a Rampaging Mummy (''guaranteed'' to scare away the first Mii that enters the room), and the same ice room followed by a darkened room with a curse gas-spewing Reaper Commander that lie at the end of every route.

** "Venture Forth", the map music from ''Find Mii II/[=StreetPass=] Quest II'', [[https://www.youtube.com/watch?v=HGmDfHZOOdY is fair
** ly unassuming at first]], but as you progress through the game and it adds [[https://www.youtube.com/watch?v=oPuSEtFGpxM more strings,]] [[https://www.youtube.com/watch?v=IV6Qzx5oJ4Q more drums,]] and finally [[https://www.youtube.com/watch?v=7Ksfj9zQIuo a trumpet fanfare,]] it sets a suitably heroic tone to proceedings that is sure to get your blood pumping.

* AlternateCharacterInterpretation:
** Is the player protagonist in ''Warrior's Way'' well-meaning in his ploy for [[TakeOverTheWorld world domination]] or is he a straight-up VillainProtagonist?
** Some people like to think that Dr. Scarlet is Coraline's mother due to her having blonde hair and being a scientist, just like [[UnnamedParent Coraline's Dad]].

** "Venture Forth", the map music from ''Find Mii II/[=StreetPass=] Quest II'', [[https://www.youtube.com/watch?v=HGmDfHZOOdY is fairly unassuming at first]], but as you progress through the game and it adds [[https://www.youtube.com/watch?v=oPuSEtFGpxM more strings,]] [[https://www.youtube.com/watch?v=IV6Qzx5oJ4Q more drums,]] and finally [[https://www.youtube.com/watch?v=7Ksfj9zQIuo a trumpet fanfare,]] it sets a suitably heroic tone to proceedings that is sure to get your blood pumping.

* EnsembleDarkhorse: Coraline is popular with many players due to how [[{{Moe}} adorable she is]].

* CharacterTiers:
** In ''Mii Force'', Brown, White, and Light Blue shirts are better than other shirts. Brown and White can destroy purple plasma shots while Brown also gives a perpetual shield against physical attacks. The only drawbacks of Brown is that when it blocks a physical attack it launches you in the opposite direction, potentially into another trap and Brown shirts can be really hard to find. Light Blue shirts just have good range, rapid fire, damage, and destroy fire based attacks. While other shirts like Blue, Red, and Orange are good in general and other shirt colors are good in certain levels (2-3 for Black, 3-1, 4-1 and 4-3 for Light Green), Light Blue, White, and Brown are the best shirts to have on your ship during most levels of ''Mii Force''. They make arcade mode a bit easier. The only useless power is Dark Green. See TierInducedScrappy for details why.

** Iris Archwell from ''Monster Manor''.
** Coraline from ''Ultimate Angler'' is pretty {{Moe}}, as well.

* UnintentionallyUnwinnable: If you use Pink magic against a [[FragileSpeedster Green Slime]], every single physical attack you make will miss. Since Green Slimes can only be harmed by physical attacks, [[FailureIsTheOnlyOption failure will be your only option]] unless you know that Orange magic can overpower Pink magic.

* UnwinnableByInsanity: If you use Pink magic against a [[FragileSpeedster Green Slime]], every single physical attack you make will miss. Since Green Slimes can only be harmed by physical attacks, [[FailureIsTheOnlyOption failure will be your only option]] unless you know that Orange magic can overpower Pink magic.

** In ''Find Mii'', Yellow, Light Blue, Dark Blue, Red, Black, and White shirts are often required for passing certain levels. In addition, Red and Dark Blue magic is handy for armored enemies where, if not strong enough, can still deal damage that way, and Light Blue and Light Green magic can be handy against the Green Slime.

* {{Moe}}:

* UnwinnableByInsanity: If you use Pink magic against a [[FragileSpeedster Green Slime]] for whatever reason, every single physical attack you make will miss. Since Green Slimes can only be harmed by physical attacks, [[FailureIsTheOnlyOption failure will be your only option]] unless you know that Orange magic can overpower Pink magic.

** In ''Battleground Z'', people who somehow have [[WhatAnIdiot no hobbies whatsoever]] are given a random weapon. The random weapon isn't the bad part. The bad part is that the weapons they give out are damaged and don't last long at all.

* EarWorm: [[https://www.youtube.com/watch?v=6UrpJsj-FIA Poppy's Seeds]]

** In ''Battleground Z'', the Wii Remote will be the weapon you use the most. Along with being the most prominent since many people you encounter choose [[CaptainObvious playing video games as their favorite hobby]], it also has great range and great power and a BoringButPractical special move [[ShoutOut not unlike]] [[Franchise/TheLegendOfZelda Link's]] [[SignatureAttack iconic Spin Attack]].

** Is the player protagonist in ''Warrior's Way'' well-meaning in his ploy for WorldDomination or is he a straight-up VillainProtagonist?

* MostWonderfulSound: The whistle that plays when you get and redeem a Plaza Ticket.

%%** [=HomePassing=] (see the main page) and Play Coins. The latter has an exception on ''Puzzle Swap'', see ScrappyMechanic below.

-->'''Iris:''' [[spoiler:You want me to read...the last page? "Iris, please forgive me. I hope you will have a happy life."]]

-->'''[[spoiler:Alien]]''': [[spoiler:Good-bye, Earth Human Ones. Good-bye...friends.]]

** Some of the potions you order in ''Find Mii''/''Streetpass Quest 2'' may turn out to be defective, wasting your hero and your Play Coins. Thankfully removed in the update that included the additional games, considering they're by far the most expensive thing that consumes Play Coins in any of the games outside of hiring additional troops in ''Warrior's Way''.
*** Annoyingly, if you have a Mii use a all-hitting magic attack on an enemy that has created an illusionary copy of itself, and the attack hits said illusion enemy first, the attack is immediately cancelled out (like it would if a Mii hit it with a normal attack) and your Mii leaves, leaving the real enemy untouched when it logically should have been hit anyway. It's possible that this may be a bug with the way the illusion enemies work.

** ''Mii Plaza'':
*** Gathering ''one hundred'' different streetpassers in a single day. Even within a crowded convention it'll take time and patience to accumulate that much!

** ''Market Crashers'':
*** Getting the status of Ace Trader in a session within viewing "Hobbiville Pharma". Normally getting the status of an Ace Trader isn't so difficult with enough analysts, but Hobbiville's "unknown zone" is the largest of all companies, stock value fluctuates far more often than the other companies, and it's believed that the requirements for getting Ace Trader (likely the money gained per second or in total) is far higher.