* {{Altitis}}: The game is very friendly towards this with 13+ slots before expansions and the Arad Adventurers system levels up quicker from having a bunch of lv20 alts than one lv80 character (and leveling provides an exp/stat boost to all characters). This is also encouraged with the ability to use your alts as an AssistCharacter for a weaker character once they reach lv50 and an increasing stat and experience boost the more high-level characters you have on your account.
* AntiClimaxBoss: Before the Metastasis came into the picture, Gangling Lotus was this. One of the "Apostles" (the thirteen strongest beings in the world), who is responsible for enslaving the entire GBL order (who interestingly continue serving him after his demise), is trapped in a statue and barely attacks. This is justified, Lotus was extremely weakened prior to his boss fight. However, post-Metastasis, this has been averted hard.
** See his redesign [[https://www.youtube.com/watch?v=e5LLskH3UUI here]]
** Almost all of the stationary bosses are easy to defeat.
* [[Awesome/VideoGameLevels Awesome Levels]]: Final Pursuit. From a storyline perspective, the Kartels have mainly been on the offensive and pushing Ghent into a corner until the dungeon fighters came along. The dungeon is a DecisiveBattle to finally push the Kartel out of Ghent, and the dungeon does everything to make you feel like it is, with APCs (automated player characters) reinforcing you throughout the dungeon, the enemies showing fear for you (as opposed to what some said in the earlier dungeons), [[https://www.youtube.com/watch?v=KlD1u-EDx_g this]] awesome piece of music playing throughout the dungeon up to the boss room, and a HumongousMecha as the boss.
* BaseBreaker: The return of Fatigue Points in Neople's revival of ''Dungeon Fighter Online Global''. Supporters argue that FP helps stabilize the economy over Blitz Points, while detractors dislike the AntiPoopSocking aspect of it.
** [[http://dfcentral.com/2015/04/08/dnf-game-update-49/ News of Korea]] [[http://static.tvtropes.org/pmwiki/pub/images/91cd0a80b27bb99e18e7891a424c9ddc.png slimming down the female Fighter's sprite]] ([[http://i.imgur.com/IS6aNXF.jpg most noticeable with the arms and legs]]) added another small schism to parts of the fanbase. People are split between those who hate the idea of it since it makes her look more typical and less unique, as well as because it makes her lose some of her AmazonianBeauty appeal, while others either don't care for it or welcome the change.
* BreatherLevel: The Iced Wall of Resignation dungeons are much easier than most of the other post-Metastasis dungeons. The main gimmick of the dungeons is that they're based on the pre-Metastasis dungeon areas with occasional out of place enemies thrown in (ex. Dark Elves in the middle of the Grand Flores dungeon, Zombies in the middle of the Mt. Thunderime dungeon, etc.). However, all the pre-Metastasis enemies are much less dangerous than the post-Metastasis enemies.
** Lampshaded by the game -- a mid-to-late quest in the area involves you discouraging other Dungeon Fighters from getting involved. How do you do this? Gather a bunch of Madness Bandit badges in order to convince them there's nothing more interesting in there than some wimpy enemies that aren't worth their time.
* ComplacentGamingSyndrome: Gunner Classes. Just try to beat a competent Ranger or Mechanic in PVP.
* CrowningMusicOfAwesome: The [[http://www.youtube.com/watch?v=eGHtfEHJZwU&hd=1 menu screen's music]] is pretty awesome. The [[http://www.youtube.com/watch?v=XQqCwdSt2x0&feature=related Purgatorium's track]] is also pretty epic.
** [[http://www.youtube.com/watch?v=LsOyzPVZM80&feature=related The original Korean version of said menu screen.]] It's called Wind Of You, and you're welcome.
** The boss music for [[http://www.youtube.com/watch?v=keWCMWcvpgY&feature=related Castellan Sieghart]]
** The [[http://www.youtube.com/watch?v=LkcW9vcEuis PVP music]], which is an abridged version of one of the [[http://www.youtube.com/watch?v=nO0ER2ZaZj8 later dungeons' music]].
** By extension, every single boss theme qualifies as this.
** [[http://www.youtube.com/watch?v=GjSf6n76Uho&feature=related Golem Tower]].
** [[http://www.youtube.com/watch?v=lUQvapOm20M&feature=related The new Grakqarak theme]].
** Three words. [[http://www.youtube.com/watch?v=W4EUxlcgcvU Death Dragon Spirazzi]]
** [[https://www.youtube.com/watch?v=KlD1u-EDx_g Final Pursuit]]. Need I say more.
** [[http://www.youtube.com/watch?v=tlBHXIXvMn0 Hell Monster]], the theme for Hell Mode.
* DifficultySpike: Post-Metastasis, the first one occurs around the time of the subclass change. Enemies in the later part of Abnova and onward start to have more varied attack patterns and enough damage to take out the player in only a few hits, not to mention that dungeons in the Meltdown area feature changable difficulty, as opposed to Abnova being pretty much easy difficulty by default. The next one occurs when the player get to Empyrean at level 55, where Ultimate difficulty is unlocked. Enemies in Ultimate boast much higher HP, making them harder to kill and more likely to kill you.
* GameBreaker: Some people view the Gunners as an entire class of them due to the fact that their default attack is a projectile, whereas other classes have to spend MP to use projectile attacks.
** In PvE party play, one class dominates: Full Support Crusader/FSader. His focus on buffs/heals enables him to keep any party alive and massively power them up to such a point it more than makes up for his lacking offense. As some put it, "He turns men into gods". He also possesses quite possibly the highest surivalibity in the game. Pray that you never see one in team PvP.
** Mechanics are the worst gunners with this. They still keep all of the pre-advancement Gunner bread-and-butter skills for PvP, and then add robots to take control of the field, easily outnumbering about any opponent they would face.
** Launchers wear Heavy Armor, unlike most gunners, which allows them to take more hits, as well as have the power to call air strikes and drop literal nukes on the field, allowing them to wipe out large groups of enemies at once. Did I mention that they are also able to summon a ''KillSat'' after their awakening?
** Witches can be considered this on many counts. Most of their attacks, while slow with high cooldowns, result unvaryingly in death if they hit. A particularly notable attack is the drill, which they summon from the sky, get in, and then ride around in for about 10 seconds. A player hit by the drill is almost completely immobilized and constantly centered on the drill tip. By the time the skill expires the player is usually long dead. Fortunately, all of the Witches attacks are based on probability. If it becomes a "sleeper success," it literally turns into an Ice Car. If it fails, it just explodes on impact with the ground, leaving the witch vulnerable until she gets up.
*** Witches also have strong air attacks, which makes fighting the witch difficult unless you have anti-air attacks yourself.
** Exorcists can definitely be considered this, being given two skill trees (effectively making exorcists a two-in-one class especially if they are built for PvP). The [[AnAxeToGrind first skill tree]] has skills that come with flinch resistance that allows them to overwhelm about anyone too close to them and land their opponents into a combo. The [[{{Onmyodo}} other skill tree]] gives an exorcist superior area denial abilities when their opponents are not willing to come close to them.
** Male Brawlers seem to be an example of this until they got nerfed.
** Male Mages have become this due to the fact that, like a gunner, have default ranged attacks. The Elemental Bomber is a game breaker in PvE but ''not'' PvP, because it doesn't matter how many enemies he faces he'll take them all out at a range, but he has less variety in moves than an elementalist so he doesn't do as well in PvP. Glacial Masters sacrifice range for better combo ability.
** Thieves were said to be gamebreaking at one point before they got nerfed to their current standing.
** Creator is ''designed'' to be this. The fact that she [[MechanicallyUnusualClass fights with the mouse]] means that her "range" is effectively synonymous with "where the screen is". She also gets tons of powerful attacks, including her basic attack alone, and a DiscOneNuke in the form of Ice Plate, which deals insanely large damage in a massive area around wherever you right clicked. This is "balanced" by making her a GlassCannon ''even by Mage standards'', which essentially means that a strong enough monster only has to punch her in the face to knock her over. However, unlike other [[GameBreaker Game Breakers]], she cannot participate in PvP.
** Summoners are gamebreaking in solo play for being able to summon what amounts to a ZergRush of summoned monsters, which escalates as she levels. The fact her summons can cause massive lag however makes her not so well suited for party play and makes her dreaded in PvP.
* GoddamnedBats: Per zone, there's pretty much a list of them. Special mention goes to the ranged scorpions in the Rotting Lot. To wit: their hitboxes are rather low to the ground, making them awkward to hit. They like to hang back and shoot poison stings that do a lot of damage and can poison you to do even more damage. And, to make it worse, you usually find at least 2 a room.
** To give you an idea of what status makes an enemy a goddamned bat: ranged attacks (aforementioned scorpions), being immune to launching (whisps/stalkers are hard because you can't use conventional combos to stop them attacking), or have an annoying gimmick that gets in the way of battle (the flare worms at Dendroid Hub)Generally, they won't kill you, but they will be a headache to deal with in a crowd for various reasons.
* LGBTFanbase: Gay {{Rule34}} of DFO characters comes in equal amounts or even greater quantities than their Straight counterparts, as the DNF tags of {{Tumblr}} and {{Pixiv}} can confirm.
* MarySue: The Knight as between her seemingly protagonist role in the story, overpoweredness, and her method of subclass training (syncronizing with alternative selves), and her and her subclasses have a whole array of CommonMarySueTraits.
* MemeticBadass: G.S.D. is considered to be the equivalent of Chuck Norris in Dungeon Fighter Online.
** Considering he's level 84 out of 70 and can use his ultimate attack at any time, it's no surprise why.
* MemeticMutation: [[LargeHam STRAIGHT PUNCH LIKE A MAN!!!]]
** Kiri (equipment enhancer) being portrayed as someone who delights in breaking weapons.
** YOU GOTTA SPEND MONEY TO MAKE MONEY! (popular phrase among the pot-headed pot sellers)
** [[BadExportForYou "Unique Experience"]] a quote from Nexon as to why the first run of DFO was different than other areas; it has since become synomous among DFO vets for the trope.
* {{Mondegreen}}: The Priest's Korean Death Cry can easily be misheard as "Ooooh, Fuck this!"
* MostAnnoyingSound: NPC chatter and idle sounds can still be heard ''even if you minimize the game''.
** To quote a Youtube User reporting bugs via video. "Normally, [The Gunner idle stance] wouldn't be so bad. That is, if HALF THE PLAYERS WEREN'T ''FRICKIN GUNNERS!''"
** DINK. DINK. DINK DINK DINKDINKDINKDINKDINKDINKDINKDINKDINKDINK DINK.. DINK DINKDINK. DINKDINKDINKDINK. (This is the sound of the Gold Spammer Bots in the trade channels and most popular waiting areas.)
*** It's even worse now that they reduced the number of channels for your character to log in to. There used to be three or four for each dungeon group (you'd get bonus EXP for choosing a dungeon in that group while on that channel), but now there's only one per group.
** fortunately, in the steam version at least, the sound goes away when you close the window, as well as chat boxes no longer making any noise. The noise pollution of the gunners has also dropped dramatically.
** EGGA! EGGA! (Mark the Target! callout, a Summoner skill that is (and should be) repeatedly spammed.)
** WHOOO! WHOOO! (Witches [[FlyingBroomstick doing their thing.]])
** The constant loud heartbeat sound caused by Asuras' Wave Brand Manifestation skill, which they have no reason to ever turn off.
* NightmareFuel: Puppet Museum. Notice every one of the statues of Dungeon Fighters you beat into oblivion? Every single one was a human Dungeon Fighter. Just. Like. You.
** As a BrickJoke, Serpentina has the aforementioned statues in her room at the Abandoned Mine, and can also summon them.
** GBL members were all mind controlled by Lotus, which can happen to you unless you wear a particular item which requires a protracted quest to get. [[GameplayAndStorySegregation This item is not required to do actual dungeon runs against Lotus]] but has some neat special effects.
* SoBadItsGood: The live action promotional trailer for the [[https://www.youtube.com/watch?v=z1sd0WTWsJk Kunoichi]]
* ThatOneBoss:
** High Priest Aslor. The boss has no annoying gimmicks, but the combos she is capable of are annoying. There are 2 attacks that are notable. 1. is her jump, which moves very quickly and homes in on a character, making it harder to avoid than most regular hunters. 2nd is her nail/blade throw, where she doesn't have a long charging time, unlike the mooks, and can sometimes throw 3 in a single volley, which can remove a good chunk of your HP or outright ''kill'' you if you are caught in it, and it also inflicts a nasty bleed status that can finish you off if you survive the initial attack. She moves fast as well, making what are normally scaled attacks on mooks demonic on her. She also has an annoying habit of using dragon's roar, a weak [=AoE=] that is meant to knock others back and normally activated on level up or revival, at random times, meaning you immediately get knocked back from a combo because the A.I. was being spitefully, possibly knocking you into place for a nail barrage.
** [[WakeUpCallBoss Isadora]], one of the two bosses in the Endless Nightmare. She has a near-unavoidable teleport/smack attack that, with her dark balls of energy, can deal well over 1000 damage, a OneHitKill fireball spell, a meteor storm spell, and, to top it off, [[FlunkyBoss summons a bunch of]] GoddamnBats.
** Post Metastasis Gangling Lotus. Now, instead of stationary boss you can wail on, Lotus hangs in the background for most of the fights. For the most part, the only way you're going to do damage to him is by attacking his tentacles, the same tentacles he uses to attack you. The hitboxes for the attacks also tend to be larger than they appear, leading to getting attacked even if you think you're safe.
** Gold King Widir, the boss of Gold Tunnel (and Gold King's Secret Cave). He moves insanely fast and has multiple ranged attacks that force the player to run around to avoid them, leaving very little opportunity to attack. And then when you take off enough HP, he [[TurnsRed removes his armor]] and gains a very long multi-hit melee combo that shreds through HP bars very quickly (it leaves him immobile after it finishes, but good luck dodging it).
* ThatOneLevel: Dendroid Hub is filled with tons of [[GoddamnedBats really annoying monsters]]. For one, the Dendroids themselves cannot be launched or grabbed, meaning fewer moves are effective on them. If that weren't bad enough, there are camouflaged versions of them that blend into the background doodads which like to attack without warning, knocking you over and granting them super armor. The problem with the attack is that it's supposed to bend in with the ground flowers and you trip one to activate it, but the collision can be way off and you'll get attacked even if you weren't touching a flower. If that weren't enough, there's also the Flare Worms, zombies whose only attack consists of granting themselves super armor, grabbing you, and gnawing on you for about 5 seconds, which cannot be escaped by mashing buttons or anything else, and can cause bleeding. To make this [[FromBadToWorse even worse]], this attack knocks you down when it finally finishes, which can be disorienting. Oh, and they like to travel in packs, so you can get stun locked into endless attacks. Finally, they leave a puddle of acid which slows you down and damages you when they die. The boss, Amphora, is mostly a pushover, save for when its HP gets low, where it will set itself on fire and start moving and attacking much faster, and do heavy damage to anyone that gets too close to attack it.
* TierInducedScrappy: In addition to Dark Knight in Korea (see below), Gunners tend to get this treatment as he has easy and free ranged attack and the windmill kick attack makes it difficult for inexperienced players to get in close.
** Summoners are also quite reviled just due to her ability to induce massive lag with her army of summons.
** Necromancers are considered to be one of the least fun classes to play, since her moveset is mainly built around her 2 minions...one of which is largely controlled by the AI and another of which essentially works like a simplified secondary character you have more direct control over and without either of them, she can do little more than lay traps and use basic thief moves. It also doesn't help that she currently only has 2 subclasses available to her and it's easy to make the mistake of picking Necromancer instead of the vastly more varied Rogue.
* TheScrappy: The newer classes save Female Slayer (mostly) get treated like this mildly in the NA regions for delaying subclasses of M.Mage and Thief.
** In Korea however, the Knight Class gets this treatment HEAVILY due to being a fanservicey, overpowered but flawed character who seems groomed to be the protagonist. That and getting her instead of the much awaited second awakenings for later characters (M.Gunner, F.Mage, Priest). Knight players were popular targets of Town PvP Ganking early on.
** Thief also got hit with this soon after she was released due to being faster and stronger than existing characters and while she got nerfed to a more balanced state (at best), the sentiment seems to have stuck. M.Mage is an exception as he's merely not popular. Such cold (at best) receptions are a factor in why they're slow to get their subclasses.
** Dark knight gets this treatment mainly because his TierInducedScrappy status as he's very difficult to fight when played well.
* {{Woolseyism}}: Nexon enaged in this with varying levels of success, with some names sounding better (Monk instead of Infighter) and some being worse (Monk'a awakening being Templar compared to God Hand). And Asura's awakening class Dark Knight being the same as a later class. It's unknown how [=NeoPle=] plans on having things translated.
** So far, they're keeping most of Nexon NA's translations for class names while changing the names of some of the more innaccurate localized names.