Demonic Spiders / Miitopia

• The Banshees. At the time you can get to the cave they're in, they can do a lot of damage to a party member, and can inflict the "crying" status effect, which is the equivalent of "blind" in this game, causing regular attacks to have a possibility of missing. This isn't so bad for most jobs (even then, they have to be at a high enough level to use their own damaging skills), but Clerics have it worse as they won't learn a proper damaging skill (not counting the really low accuracy skill Righteous Anger) until a very late level (relatively around post-game). A lot of first-time players wind up running into the cave first only to have their party knocked out. Surprisingly, their upgraded variants are more in-line with the progress you have made in-game, making them only an early-game offender.
• The Fiends are an absolute pain in the neck to deal with. They have low HP and physical defense, but take minimal damage from magic attacks and have a One-Hit Kill move. They're also impossible to outspeed or dodge and sometimes show up in pairs. The only ways to get past them without a death is when they (very rarely) use a normal attack, using Shield Sprinkles, or by putting a Mii (preferably your best physical attacker) in the Safe Spot. Their upgraded counterparts, Terror Fiends, are even worse, and woe be to those who encounter multiples.
• The Hobgoblins are an annoying enemy type that are well-known for their full-party hitting attack. This Magic-based move will knock out half your party with a single attack if you haven't grinded before seeing one, or can potentially party-wipe if multiple Hobgoblins perform it. Worse, you don't even have a full party when you first encounter a normal Hobgoblin, and they're annoyingly common in the area after your team is full with a new member, to which the new teammate will be knocked out constantly by even their standard attacks. While the endgame Hobgoblin Bully is not as terrifying as the original, the post-game Hobgoblin Mages will make you re-live the agony of their party-wiping potential all over again.
• Crystals are rather obnoxious for only having a basic attack. Their biggest perk is their very high stats in HP, Attack and Defense, and they often come in droves or with other tough enemies to pick up the scraps. While Purple Crystals are downgrades found at exactly the same time as Crystals, Gold Crystals take the same swarm approach while boosting their HP, Attack, and Defense stats.
• The Harpies are loathed in every capacity due to just how annoying they can be. They are very fast and hit very hard, and to top it off, they can separate a Mii from the party for two turns with their Gust attack. If you are at low health and a Harpy blows your healer away, or if you are outnumbered and it blows your damage-dealer away, you are in a heap of trouble. Add the fact that they always appear in multiples or coupled with some of the strongest monsters out there, and there's no arguing why many players seek out and destroy the Harpies on-sight.
• There's also the Angry Queens that first appear in the postgame Easin Hills dungeon. They have approximately 1,000 HP (which is a really large amount at this point in the game) and that they can also deal around 40-50 damage to the entire party (Your party will usually only have 100-180 HP).
• Red Dragons. Not only do they have a lot of HP (About the same as the Angry Queens), but their attacks are WAY worse since they deal a whopping 70-90 damage to the entire party. It doesn't help that they appear as a boss first and then you start fighting them as enemies a few levels later...
• Ham Sandwiches are like smaller, wider versions of Extra Spicy Burgers, which have tons of HP and hit like trucks, but with Splash Damage in this case (though they can't swallow Miis). It doesn't help they tend to appear alongside Clever Running Noses, Terror Fiends, Hobgoblin Mages, and Black Harpies, all of which are ALSO Demonic Spiders.
• Giant UFOs are infamous. They tend to steal HP Bananas, leaving you to rely on HP Sprinkles, which, by the time you meet one, are rather unreliable. They have a whopping 1,950 HP, meaning preventing them from stealing your HP Bananas relies on the off-chances that they attack you instead of stealing from you, and wailing on them. To make it worse, they often pair themselves in multiples, with Clever Running Noses, and even with Quest bosses, meaning your HP Banana supply is oft drained and your party without a reliable healing source outside of specific classes.
• Clever Running Noses are nasty. They have a considerable lump sum of HP, a powerful attack with Splash Damage, and appear all the time on quests. There's also the Wild Running Noses; these are the strongest among all Running Nose enemies and make battling the aforementioned Clever Running Noses a cakewalk in comparison.
• Moldy Mummies, the upgraded version of the Neskdor Mummies. Not only do they deal much higher damage than their earlier counterparts, but they also retain the ability to swallow your weapons. This forces team members to do pitiful damage with their bare hands. Magic-based classes such as the Mage and Cleric suffer the hardest due to having to rely on their significantly weaker attack stat and Tanks are outright useless (they can’t attack, with an "Out of Ammo!" text showing up on their turn without their shells.) On top of that, losing your weapons also means you can’t use your skills, including the support skills. No Encores, no Forest Aegis and no healing until the mummies spit back out the weapons, which can take a while. Being unable to heal is especially difficult, given their high damage output compared to their earlier forms. And worst of all, you can encounter four of them in a single battle, and they will take your entire team's weapons, leaving everyone to deal little damage and take a lot of damage without being able to heal without HP Bananas or Sprinkles. You'll have to pray that they spit out the weapons soon.

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