Line #1 GoodBadBugs/MassivelyMultiplayerOnlineRPG


1	* ''VideoGame/ClubPenguin'' had a bug that only worked if you clicked the igloo button while your penguin was on its way to play the Aqua-Grabber minigame. After losing the game, you could click the "close" button to earn the coins you earned a second time, potentially earning you millions of coins. This also worked with the minigame Bean Counters.
2	* ''VideoGame/StarTrekOnline'':
3	** During closed and open beta there were numerous bugs which although game breaking, were incredibly funny. The best of them involved Tribbles which in the game are basically a small medkit. Petting a Tribble you carry in your backpack heals you slightly every ten seconds. Since players may forget the number of medkits they are carrying, repeatedly pressing 'H' to heal would cause the game to run the Tribble heal animation. This involves the character taking the tribble out of their backpack and gently stroking it while it purrs, giving it a gentle poke and laugh as the fuzzball softly coos before returning it to the backpack. This animation forces the character to stand out of cover for a solid 10 seconds. Many missions were lost due to the majority of either teams suddenly standing up and deciding to poke their Tribbles while taking the entire opposing team's phaser fire to the face.
4	** Another Tribble bug would cause any Tribbles used during a heal in Ground PVP to slowly grow in size. For some reason the bug was serverside so every player on the server could see it happening. Over the course of 15 to 20 minutes the Tribble would slowly grow out of the players right pocket, eventually taking up the entire map. Occasionally the gradually inflating Tribble would be anchored to a random body part of the character instead of the right pocket. This would yield several players running haphazardly through the midst of a firefight with a large Tribble consuming the upper half of a player's body, head or leg. The growing Tribble had full collision so given enough time, players would start getting their Tribbles caught on doorways, ship decor and eventually become embedded in the map.
5	** Sometimes upon switching from Ground PVP to Starship mode, some players ships would be massive flying Tribbles.
6	** More like a Good Bad Typo, but there's a duty officer assignment to investigate rumors that your faction's military intelligence agency has inserted operatives aboard your ship. Its title is "Investigate Rumors of <insert faction> Intelligence". Cue jokes about <faction> being rumored to be intelligent. Cryptic actually fixed this at one point only to backtrack because people liked it so much.
7	** One possible version of the "Officer of the Watch" daily in player fleet starbases is to be requested to line a group of cadets up for inspection and inspect them. The KDF version occasionally spawns a [[http://en.memory-alpha.org/wiki/Targ targ]] by mistake.
8	** A pre-launch bug that reappeared after season 8 launched caused the game to sometimes forget to change the player's avatar when moving from a space map to a ground map, resulting in [[http://img20.imageshack.us/img20/5052/rdt3.png indoor starships]] with rather bizarre collision-detection.
9	---> '''Eleya@starswordc:''' I think I've had too much [[FantasticDrug nepeta]].\
10	'''[=Baldrick@pickledonion451=]:''' now thats some bad parking
11	* ''VideoGame/TheLordOfTheRingsOnline'' had a hilarious bug that allowed a player to move while seated in a chair. This led to [[https://www.youtube.com/watch?v=eRPZelM3f0U chair-trains]] and the like.
12	* ''VideoGame/EverQuest'' had the best bug ever: naked time. Sometimes, randomly, players suffered an interesting graphical glitch that wiped off their default clothes and left them starkers.
13	** A similar bug sometimes occurs in ''VideoGame/WorldOfWarcraft''. Sometimes when zoning into an instance, the game for some reason doesn't display the gear of other players in the group, leaving them looking like they're naked.
14	*** And as of the Warlords of Draenor expansion, there is [[http://www.wowhead.com/item=119092/moroes-famous-polish a quest reward]] that allows players to trigger this effect intentionally.
15	** Also in ''[=EverQuest=]'', there was a longstanding bug (now fixed, sadly), wherein you could a) discard a weapon, causing it to appear on the ground under your character, making him rise the thickness of the weapon to end up standing on it, b) drop another weapon, which stacks on top of the first, and raises your character another few inches, c) pick up the first weapon from the bottom of the "stack", which leaves the second fixed in mid-air (the key glitch) with your character still standing on it, d) rinse repeat, allowing your character to (slowly) ascend to an arbitrary height using an endless "ladder" of two alternating weapons. Fun for overcoming terrain obstacles, hovering high in the air to confound the uninitiated, or getting a peek at strategic locations.
16	** The sliding doors in the multi-level Shissar temple could be used to advantage. Stand in their way as they slide shut, and when they wedge your character against the door jamb, the physics engine would usually squirt you out either side like a watermelon seed as intended, but sometimes would squeeze you into the wall and pop you out into the room below, skipping past numerous encounters and the occasional locked door.
17	** When in wolf form, the "eye" location on the 3D model was fractionally beyond the collision-avoidance radius, making it possible to peer through walls if you pressed hard against them, to scope out the situation in the next room before you entered.
18	** During the initial months of the game's release, an [=NPC=]'s damage was determined by its level, with the formula usually being Level2. If an [=NPC=] spawned with a weapon (or a player gave them a weapon), their damage would change to <weapon damage>2 as long as that number was higher than their default, unarmed damage, but the [=NPC=]'s attack delay would remain unchanged. This was exploited in two ways. First, low-level pet classes would give their pets cheap, high-damage weapons (like rusty two-handed swords, which were slow, but relatively powerful at low level) to improve their damage-per hit, and second, particularly mischevious players would outfit low-level monsters with high-damage weapons to ramp up how hard they hit, often causing problems for newbies until a higher level player came along to kill the "twinked" [=NPC=].
19	** In the same vein, once a player's summoned pets gained the ability to dual-wield (typically in the high 20s), equipping them with a pair of weapons ''would'' actually change their delay to the weapon, but again, their damage was unchanged unless the weapon's base damage was high enough. This led to pet classes equipping their pets with a pair of ''Fine Steel Daggers'', which weren't particularly impressive, but ''were'' particularly cheap had a very low delay of 19, turning their pets into blenders. What's more, a necromancer had the spell ''Feign Death'', which caused them to be ignored by enemies while their pet attacked everything in sight. It was common for a necromancer to go into a dungeon, equip their pet with daggers, then feign death and go to bed, only to wake up several levels higher. This was eventually patched in three ways: By locking a pet's delay to a fixed value independent of weapons, by making it so [=NPC=]s never attack idle pets, and by instituting a timer wherein a pet despawns if its master stays in the feign death state for longer than about 60 seconds.
20	** Though more of an oversight than a genuine bug, it still qualifies: In the beginning of [=EverQuest=], hybrid classes were assigned a 40% experience penalty to offset what was perceived as an otherwise unfair advantage over single-role classes. This was accomplished not by penalizing earned experience points, but instead by requiring 40% more experience for a given level than a class without penalties. Sometime down the road, after the Tank/Damage/Healer trinity became more understood, the developers realized that the hybrids' "jack-of-all-trades, master of none" design was, in an environment based on specializing in a particular role, a limitation in itself, and removed the penalty. They did this by simply applying a 40% bonus to all earned experience. Fast-forward to the Planes of Power expansion, where the Alternate Advancement system was implemented, which introduced an alternate experience point pool used to purchase upgrade abilities. Learning from past mistakes, the developers made the experience tables for earning these points the same for every class. However, they '''forgot to remove the previous bonuses granted to hybrids!''' This resulted in hybrid classes gaining alternate advancement experience 40% faster than other classes. By the time the issue was discovered and fixed, many players had racked up hundreds of alternate advancement points that their fellow non-hybrid gamers could not.
21	* ''VideoGame/WorldOfWarcraft'' once had a bug wherein players could jump off of and onto thin air by timing it right. Between discovery and fix, all the cities were deserted, and all the players were sitting in the air above.
22	** The [[http://en.wikipedia.org/wiki/Corrupted_blood_incident famous bug that caused a raid-boss disease to spread into the rest of the world]]. Said disease actually spread between players, so the effects were comparable to real-life diseases -- to the point where academics expressed interest in studying it. That condition was later [[AscendedGlitch replicated on purpose]], during the "in-game event" before the ''Wrath of the Lich King'' expansion went live, as [[UnexpectedGameplayChange a full-blown]] ''ZombieApocalypse'' caused by TheVirus.
23	** Another popular bug was the one that allowed players to scale steep mountain terrain, allowing them to get into areas such as the Moonglade Troll Village, Old Ironforge, the Ironforge Airport, and an alternate Zul'Gurub. Exploiting this bug took a certain amount of skill, and players felt that the areas were there to be explored. Blizzard thought it was an exploit and removed it. An item that could allow slow-fall (Noggenfogger Elixir) was also changed so players couldn't leap off mountains safely.
24	** Another bug that brought some players hours of enjoyment revolved around the Shaman's Fire Nova totem. This totem would do damage to all enemies around it every 3 seconds. If a Shaman timed it right, they could drop the totem then disconnect right before the totem did its damage. Totems disappear slightly after the player when the player logs off, therefore, the totem would go hostile, damaging ''all'' players, whether they be on the totem's original owner's side or not. A level 70 shaman could team kill most lower level characters in the capital cities. Typically, panic would begin, with people having no clue what was going on, then hilarity would ensue as those same people would realize what was happening. Blizzard fixed this one pretty quickly.
25	*** It was, however, very useful for petty retribution against goldsellers and their auctioneer alts. Pop a Nova totem next to the level 1 orc warrior spouting poorly-spelled gibberish and disconnect. Log back in... /point /laugh.
26	** Back before ''The Burning Crusade'', the world boss Kazzak would cast a debuff on players that would make them explode for massive damage to everyone around when they hit 0 mana. This debuff was not removed by the Paladin immunity spell, which meant they could aggro the boss, get the debuff, teleport to a capital, and cast a spell that would drain their entire mana pool. HilarityEnsues.
27	*** Kazzak was also pretty close to the human city of Stormwind, where he could be taken to by certain classes that were diligent enough to make the trip with a huge boss trailing behind. Once there, he would cast a spell that would hit everyone in a specific range for massive damage if there were more than 40 people in his aggro radius (he was a 40-man raid boss). Of course, there are usually hundreds of people in Stormwind at any one time, so he could completely decimate the city with ease.
28	*** Even better, Kazzak's Death Blossom attack - which was intended to keep raids from cheesing him with too many players - also ''healed'' him for the same amount of damage it caused - ''and'' the Kazzak fight had an incredibly strict Enrage Timer (if you did not kill him in a certain amount of time, he went berzerk and began attacking much, much faster and for far, far more damage). Kazzak would hit that timer before he even reached the city. What this amounts to, was that once Kazzak reached Stormwind, he was effectively invincible, constantly pumping out thousands and thousands of area-effect damage that was constantly healing him for ''far, far more damage than could ever possibly be dealt.'' In order to get him out of the city, [=GMs=] would need to basically restart the entire server, as nothing in Stormwind - not the players, not the [=NPCs=] and not the human faction boss - could do anything against him but die in horrifying droves. Even without knowing anything about ''World of Warcraft'', the "Kazzak in Stormwind" videos of such encounters are freaking hilarious.
29	*** Something similar happened frequently with a Devilsaur (T-Rex like elite mob) being kited from Un'Goro all the way to Orgrimmar. The video is hilarious, and seeing a mob being kited pretty much all across Kalimdor - especially the Barrens - is an awesome feat indeed.
30	*** The same could be done with Anachronos (who was also a 40-man raid boss) and Orgrimmar, the orc capital. It was a longer run, and Anachronos wasn't as powerful as Kazzak, but he did still wipe out most of the city.
31	*** Similar to the above, a (different) raid boss occasionally casts a spell on one of his attackers, chosen randomly, that turns them into a bomb; after a short countdown they explode, doing huge damage to everything around them. The bug part comes from his random targeting including players' pets, which could be [[HammerSpace dismissed]] before the countdown ended, then re-called later, say in a peaceful city full of unsuspecting people, with their fuse still lit and burning down. Whether this counted as a good bug or not depended largely on whether you were in the blast radius. Although it was hilarious while it was possible, Blizzard disagreed; players who pulled it off got temporary bans until the bug was finally fixed.
32	*** There were also the enemies in the Blasted Lands that couldn't be killed by normal means. You could pound on them endlessly until you smashed a nearby crystal that held their life force. It was eventually discovered that the enemies could be pulled to Stormwind, where usually at least 100 people, level 1 to 60, would join in the fray.
33	*** Especially useful back in the day, as it was a perfect way to level up your weapon skills with little to no actual input. Said mobs would be kited up as far as Ironforge (why?!) just to have players level up their skills ''very'' easily.
34	** Death Knights also got the pleasure of being the tour-guides for a rather [[BuffySpeak trippy... trip.]] Discovered when a bored DK was in Booty Bay, basically as far south as one can go without walking off the beach into the endless horizon, and decided to duel random people. Then the boat arrives, and the Death Knight uses his spells to yank his target to him. This caused the target to freak out, and launch off at super-sonic speeds northward, through the terrain, to finally stop on an underground boat in the northern part of the continent. And it's a big continent. The whole trip took about 8 minutes.
35	** When the talent trees underwent their first change (just before Burning Crusade), Warriors gained an ability called Rampage that when activated would give a buff that would grant extra attack power, and would stack up to five times with each blow dealt. Eventually someone discovered that when you jumped out of an instance, or back in, the Warrior would gain five more stacks of the buff. The catch was the buff lasted only 30 seconds or so, but by dueling a player outside an instance, activating Rampage, then jumping in and out, a player could build his attack power to insane levels. There is a video of a Warrior ''one-shotting'' enemies in Molten Core for ''millions'' of points of damage. Warriors at level 80 still don't hit for more than 5000 in most cases.
36	*** A similar (but much less powerful) thing happened to Shamans when they removed Dual Wield from the talent tree. They got a point back for the removed talent, but kept already slotted talents regardless of whether they had enough points, allowing them to get 41/21 builds.
37	*** Another similar thing almost happened to Warlocks (it got fixed in Beta, but MAN, what a Beta) between ''Burning Crusade'' and ''Wrath of the Lich King''. Tier 5 Warlock armor had a set bonus that increased the power of Corruption - a damage-over-time spell - with each Shadowbolt - a nuke spell - that struck that target. Then, [=WoTLK=] introduced a new talent called Everlasting Affliction, which ''refreshed the duration of Corruption'' when the afflicted target was hit with Shadowbolt. This got fixed immediately after a video appeared showing a Warlock's Corruption ticking for ''more digits than the game could handle'', estimated to be somewhere in the ''trillions.''
38	** A bug with the new Looking For Dungeon instances allows druids to drive ground mounts ''through the air''. By zoning into a dungeon with the LFG function while in flight form and then leaving the dungeon while mounted, the druid would return to their original location in flight form with the mount hovering just under them. It's a bird! It's a plane! It's a druid riding a flying mammoth!
39	*** On a similar note, in the Icecrown Citadel raid instance, there is an encounter called the Gunship Battle, wherein players must shoot down an opposing airship with cannons, and as part of the encounter must leap back and forth between ships with the help of rocket packs. The problem was that Druids in Bear Form... displayed the rocket packs directly on their asses. This was 'fixed' very briefly by disallowing any shape-shifted player to use the pack - and then fixed right back due to outcry from tanks not really wanting to have to change forms just to fly over and do their jobs. To this day, Bear Tanks fly by ass power.
40	*** Another interesting one to see is the new Halls of Origination, where every player can ride on a camel -- including shapeshifted Druids. Rocket bear on a camel? Fear it.
41	** After completing certain quests, whenever you enter the Brunnhildar Village zone in Storm Peaks, your character will automatically be transformed into a female Frost Vrykul to blend in and interact with the villagers. Until it was fixed, this disguise was unaffected by the various transformations available to certain classes. With the Shaman's Ghost Wolf or the Druid's Travel Form it only meant you'd have a very fast-running vrykul, but the Druid's Flight Form allowed your still Vrykul-shaped character to swim through the air.
42	** The infamous Reckoning Bomb: a talent in the Paladin tanking tree called Reckoning causes any damage dealt to the paladin to have a chance to cause their next attack to deal an extra hit, originally the number of hits that the talent could stack had no maximum. By having a low-level person with weak weapons but fast attack speed hit the Paladin repeatedly without him hitting back, the paladin was able to store up an unlimited number of bonus hits, all unleashed on the next attack. This was immediately fixed after a video was made showing a Paladin one-shotting the above mentioned 40 man raid boss, Doom Lord Kazzak. Reportedly, resolving the 10,000+ attacks took so much processing power that the whole server froze for several seconds.
43	** Warlocks had a series of fun glitches associated with their pet and enslaved demons, including being able to sacrifice a demon for one buff, then have it resurrected to gain a second buff. Even more fun was a glitch with mind control that allowed one to permanently enslave a demon. The (potentially Elite and two levels higher than you) demon would follow you around even after the enslave effect normally ended. You would lose the pet only upon zoning through a loading screen, or logging out and waiting for the displaced monster to realize it was far from home and despawn. If you logged out and back in quickly, you could summon a second demon and have two pets following you around. Also, logging out with this powerful beast enslaved would revert him to his hostile form, regardless of location. If you logged back in before he despawned or died he would revert to your control. Amidst corpses of your low-level "allies."
44	** There are several glitches with costumes. For one thing, if the costume uses a non-player race model, it defaults to the male gender if your character is female. This even affects gender-specific titles. Going from male to female is a lot harder, but not impossible with the help of engineering teleports.
45	*** Until it was fixed, using a costume while driving a bike with sidecar would glitch the sidecar to an unintended angle. While this was fixed, some costumes also change the size of your character (and the bike). As for vehicles in general, some costume models (and the druid moonkin form) refuse to sit down when they should. Also, while most costumes can't be used in conjunction with druid forms, the few that can lead to amusing results such as being able to mount in form.
46	*** Certain instances make player characters look human for story reasons. The human model will have the same gender as your race, unless you zone in while under the influence of a costume buff that is always the same gender, in which case the human model's gender will correspond to that of the costume. It's also possible to overwrite the human transformation by using a costume after zoning in. After the costume buff wears off, you'll revert to your true form.
47	** A still active glitch is in Stormwind, where one can jump through the wall and land "underneath" the city. If done right, one can travel anywhere in Stormwind instantly, and can even do an instant warp to Westfall.
48	** The mage arcane talent Incanter's Absorption allows the shielded mage to convert a percentage of absorbed damage back into spellpower for a few seconds. In its original form, any shield would do this with no upper limit. Some enterprising mages learned to steal the Naxxrammas Death Knight mob bone shields and racked up enough spellpower to solo the entire 20-man instance.
49	*** Even after a percentage of the mage life was hotfixed as an upper limit, any shield could still theoretically yield this increase. This allowed the game mechanic of the Twin Valkyr in the Trial of the Crusader instance to give the mage a constant free spellpower update for the entire fight, effectively doubling their damage. As a result of this, yet another fix to the talent now limits these increases from coming ONLY from the mage's shields - Mana Shield, Mage Ward and Ice Barrier. No other shield effect will trigger the buff.
50	*** The Twin Valkyr fight also had another bug exploitable by warlocks. In the fight, all characters must click on portals to recive shields of light or darkness, which absorb the corresponding damage. Once you absorb a certain amount of damage, you get a temporary buff. For some reason, the light shield was triggered by the warlock's Hellfire spell (which deals damage to both the caster and any enemies in range), so warlocks would often spam the spell just as the fight started for free stacks.
51	*** Piddling when compared to the above glitches but still pretty amusing, on occasion back in Vanilla [=WoW=], a player's name would be inexplicably inflated to ridiculously ginormous degrees. Ridiculously ginormous. As in, hundreds of times larger than the character himself. This made for often hilarious moments in PVP, when an enemy player would attempt to sneak up on you, unaware that his name, rank and guild affiliation was ''larger than the sky''.
52	*** Occasionally happened with the ! or ? of a questgiver too; [[http://www.wowpedia.org/File:ZOMG_Quest!.jpg?c=1 so]].
53	** One glitch that gained brief notoriety among twinks (players who create low level characters to PVP with the best gear at that level) involved an elite mob in the zone Dragonblight. Krueg Oathbreaker, an undead giant targeted in an Alliance quest was the only NPC in game to drop an item called "Enti's Quenched Sword." The item, itself a reference to a sword from [=EverQuest=], was an altogether -uninteresting sword that did a maximum of two damage making it BetterOffSold... Until someone actually equipped it and saw that it was actually doing hundreds of times that. This still wouldn't have been too interesting, as weapons at the time still did thousands of damage more than the sword, except for the fact that [[DiscOneNuke there was no minimum level to equip the sword.]] Queue lines of dozens of people farming poor Krueg in hopes of getting a 40% drop rate sword, that could one-shot nearly anything at low levels, and be sold for hundreds of gold to other players. Unfortunately, Blizzard caught the bug within a week or so, and fixed the info text on the sword, as well as creating a minimum level of 70 to equip it.
54	** The Hunter class is able to tame [=NPCs=] tagged as "beasts." Usually, when a pet is intended to be untameable, the developers flag it as such. On occasion, however, there are beasts with unique models that have some gimmick to them that would make them [[TemptingFate completely and utterly impossible to tame, so the developers don't even bother flagging them.]] Of course especially clever hunters will always find a way around these.
55	*** One of the most famous was the Grimtotem Spirit Guide, a spectral wolf. "Spectral" looking creatures were, at the time, nearly all untameable (there was one exception, a ghost cat, and since this happened, a new type of pet the "spirit beast" has been introduced, which is comprised entirely of rare creatures that have one-day spawn timers.) This particular beast was especially interesting, a random NPC in the middle of nowhere had a spell he would cast which would summon one of these creatures for a mere five seconds. Tame Beast, the spell that, well, [[ExactlyWhatItSaysOnTheTin tames beasts]] took 20 seconds to cast. Hunters however, managed to figure out that by stacking nearly every cast-reduction spell and enchantment at once (a pricey feat) and getting at least two other players to help you (one to mind control the NPC who summons it, and one to cast Bloodlust, a cast time reduction spell) you could get the cast time on Tame Beast to just under 5 seconds. What drew so much attention to this particular bug, however, was that a Blizzard employee actually posted shortly after the bug was discovered that, since the method was so cool, it would be left in the game... Only for the Grimtotem Spirit Guide to quietly be flagged as untameable the very next Tuesday. Oops. Apparently what he had meant to say was that those who had already gotten one by the time the bug was fixed would be allowed to keep it.
56	*** Another series of interesting pets which can still be seen walking around major cities are a ghost crocodile, a hydra, and a pile of [[BlobMonster slime.]] A quest in the area Sholozar Basin involved summoning one of the above three [=NPCs=]. At the time, while [[CallARabbitASmeerp crocolisks]] could be tamed, hydras were one of the classes of "beast" which could not, and slimes had typically been denied any classification at all. All three [=NPCs=], however, were flagged a tameable beasts. Unfortunately not only were the hydra and slime flagged as untameable, so was the crocolisk, in a later hotfix.
57	*** Going even further back, all the way to vanilla, snakes could not originally be tamed. Eventually someone found one which could, inside an instance. Pretty soon afterward, since the instance wasn't max level, nearly everyone went and got one. Blizzard fixed the bug shortly after. It's ok though, they were pretty nice about it, they let everyone keep the snakes they had gotten. Oh, except they removed the ability to feed them. [[OhCrap And at this point, pets would run away, or even turn hostile against you, if you went too long without feeding them.]] In other words, hundreds of unique pets which could no longer be gotten were either released, or [[TooAwesomeToUse put in the stables never to be used again.]]
58	*** One of many named quest mobs introduced with the ''Wrath of the Lich King'' expansion was a wolf named Garwal. Garwal's big thing was that, when he was about halfway dead, he would transform into a worgen (werewolf), switching from being a beast, to a humanoid. Eventually someone found out that if you tamed Garwal at exactly the right moment, he would transform as the taming finished, and you would have a pet worgen. It was an especially tricky one, too soon and he would remain a wolf, too late and he would become a humanoid, and thus, untameable. Unfortunately, unlike the above pets, when Garwal was discovered, Blizzard not only made him untameable, they changed any tamed Garwals into ordinary, boring wolves. Still, for a while, it was an incredibly cool bug.
59	*** The Sons of Hodir faction starts as hostile, and as you do a particular questline become friendly with you. There are all sorts of advantages to getting reputation with them, and once you do become friendly with them, there's no real reason to flag yourself "at war" with them. Except one. After a certain point in the chain, a large wolf will spawn as a quest giver. This wolf was tameable, and once tamed, it would still offer the quest to anyone nearby. This meant that, for awhile, you had hunters with quest givers following them. This too, was patched not long after discovery.
60	*** Once tamed, Hunter pets are typically scaled to a certain time, increasing very slightly as they become higher level, and keeping hunters from having ridiculously huge pets. Unfortunately, this scaling has always been... buggy, to say the least. One such example involves a giant (and we do mean GIANT) orange and purple wasp which could, breifly be tamed. It would scale down... But would still be at least three times larger than other, already rather large, wasps, sitting at around twice the size of the largest player. These were made untameable, but those who had them were allowed to keep them, and the scaling was never fixed.
61	*** Sadly the above glitch was fixed with the cataclysm. Most if not all pets reverted to boring sizes.
62	*** Two humorous Hunter pet related bugs involved "exotic pets," pets only available to hunters who have put all their talent points into Beast Mastery specialization. These are creatures like T-Rexes, or giant flaming hellhounds. These two pet classes had an interesting problem, the original creatures were very large, and very difficult to fight. As such, Blizzard made the screen shake whenever one walked close. Since they were only found in remote areas, this was fine... Once hunters tamed them, and found that the screen still shook, this was less fine. Every major city was pretty much consistant screen shaking, not to mention constant screen spazzing for a hunter who actually had the thing! The screen shake was fixed pretty quickly. A bug involving the scaling of these huge beasts that can still be found today, however, is possibly even funnier. Since the beasts are so huge, the game scales them down about 70% after taming. However, the way it's coded scales them down EVERY TIME THEY ARE BROUGHT OUT. This means that frequently they will be huge when called, and instantly scale down. Sometimes though, for whatever reason, it will actually scale them UP about 70%. Seeing Godzilla rampaging through Orgrimmar is amusing to say the least.
63	** With the Dragon Soul patch, a fix to jumping caused a bug which affected in-air momentum. The bad news was that druids in flight form came to a dead stop if they shapeshifted, so no more high-speed flying bears; the good news was that anyone trying to cross water could jump on the surface, and would move at full speed while in air, so constant jumping allowed players to cross water like it was solid ground. That got fixed a few patches later.
64	** In the 5.1 patch the brawlers guild, a fighting arena where you can fight alone against bosses that scale in power from very easy to near impossible to defeat for some classes. All is not lost as a glitch happens that causes 3 people to fight in the arena at the same time. As long as one boss dies everyone who is still alive wins their matches. this can be both good and bad. If you are fighting one of the hardest enemies and someone brings in the first boss you may sing praise to them, however if they bring in the giant insect that takes up half the screen and kills people in one hit you might be angry.
65	** A rather hilarious bug happened during the ''Wrath Of The Lich King'' beta in the city of Dalaran. The expansion introduced the barber shop, which allowed players to change their facial hair style. However, a bug caused the barber shop in Dalaran to have a very weird trap in its entrance: though it was textured like a normal floor, it actually was a hole. This meant that players attempting to enter the shop would fall through the floor unless they jumped at just the right time... [[GravityIsAHarshMistress and did we mention that Dalaran]] [[FloatingIsland is a FLOATING city]]? Naturally, players would line up to try the new feature, [[https://www.youtube.com/watch?v=Ds4I_7M90qw only to phase through the "floor" and fall to their deaths]].
66	** All bosses tend to have bugs when first released, but one of the most notorious cases (not least because it was the FinalBoss of an expansion) was the Lich King 25-man raid. One of the fight's mechanics involves the Lich King smashing the edges of the arena to reduce the fighting space, and at certain points Val'kyr spawn and pick up players, carrying them to the reduced edges to drop them to their deaths, with the raid having to DPS them down before they get to the edges. The problem was that the broken platforms were bugged in a strange way which caused siege damage to prematurely respawn them before the Lich King was supposed to, and the respawns could be triggered by Saronite Bombs, which certain classes were already using for DPS. Not only did respawning the platforms this way render the Val'kyr harmless (they would try to drop players, but would drop them on the platforms, turning what was meant to be certain death into a mild inconvenience), it also gave more room for players to avoid the Lich King's area of effect abilities. The bug became well-known after a raid group fighting for world's first Lich King 25-man kill deliberately exploited it, with Blizzard quickly hotfixing the issue and slapping the group with a three-day ban for the exploit along with stripping them of their loot and achievements for the fight.
67	* ''VideoGame/MapleStory'' normally forces players to complete one action before starting another, but with enough practice mages can cast spells in the middle of a jump or teleport. Archers could also fire before hitting the ground with proper timing.
68	** There's also a method of smuggling [[PlotCoupon quest items]] out of Party Quest dungeons- useful because many are frustratingly hard to get and the game otherwise deletes unused ones each time you leave.
69	** When the Phantom Forest was first released on the Global server, the devs forgot to enable the "Boss" flag on Bigfoot, a powerful enemy that appeared on nearly every map in the area to give the illusion that it's "chasing" players. This lack of a Boss flag meant that it was vulnerable to StatusEffects. Due to how the poison ailment works (it deals a percentage of the monster's max HP every second), this meant that classes that could inflict poison (at the time restricted to Fire/Poison Mages, Shadowers, and Night Lords) could easily kill it for its massive EXP reward. When the error was finally fixed, Nexon also [[DisproportionateRetribution banned everyone]] [[NeverMyFault who had killed Bigfoot this way]].
70	* ''VideoGame/CityOfHeroes'' has a bunch of these, but we'll stick to listing the ones that have been fixed...
71	** Being in flight used to, when knocked back, totally negate the animation system. The flip motion would allow one to continue activating powers, moving, and everything as though you hadn't been hit at all. Not just immunity to knockback, but being able to move despite it.
72	** The Traps powerset used to, with the power Poison Gas Trap, spawn one "trap effect" per critter in the area of effect. This trap effect would stack with itself, causing stuff like archvillains to be held and unable to attack back. This grew to insanity when one could slot, say, a guaranteed damage proc into it for a free nuke-class power...
73	** In the "Obvious Mess Up" category, a misplaced decimal caused Smoke Grenade in the Devices powerset to debuff 100% tohit (The normal critter had 50% tohit, bosses 75%, at that point), instead of 10%. This allowed /dev blasters to solo in total safety.
74	** If the game could not find the desired model for the hostage, it would load the first one on the list... a 5th Column [[MechaMook Mek Man]], which would cower and thank you profusely. Sadly, the patch that made a reference to the bug and HardLight holograms changed the model to a less amusing 5th Column villain.
75	** One bug that didn't make it out of Beta testing involved a special enhancement that when slotted into a power that weakened enemy defenses had a 20% chance of doing a little supplemental darkness-based damage, comparable to typical filler attack. Something went horribly awry[[note]]The proc attack was coded to deal ten times a (low) value in the appropriate damage scale table. However, instead of the value in the table, it references... the target's maximum hit points. Times ten. Using it on giant monsters was the reason...[[/note]] and for a while this item was known as ''Lady Grey's Chance of Scientific Notation Damage.'' The power of this buggy enhancement 1-shotted the Hamidon, a synthetic cosmic horror the size of a football stadium that normally takes 50 characters an hour or so to finish.
76	*** This was actually the second version of this enhancement, having been patched from an earlier -- but no less broken -- version. In its first incarnation on the test server, the 'Touch of Lady Grey: Chance for Negative Energy Damage' enhancement would be better named by removing 'Energy' from the name -- when the proc attack went off, it did '''negative''' damage, ''healing'' the target of the attack.
77	** Another bug that didn't make it out of beta was Call Hawk's graphic effect scaling to the enemy. Using it on a giant monster made it summon ginormous rocs.
78	** Location effects, like rains, tornadoes, and storms, began inheriting buffs in approximately Issue 5 - the intent being that they inherit only things like Accuracy and Damage, and ignore things like Recharge. However, both through Invention enhancements (by some trick of the coding, the pseudo-pets these powers create inherit recharge from multiple-aspect enhancements, even when they don't do so from regular Recharge enhancements) and through regular player buffing, these effects were inheriting recharge, enabling their attacks to come faster - which caused them to do more damage, which meant...
79	** At one point there was a bug that allowed characters to slot damage/range Hamidon Origin enhancements into melee [=AoE=]'s, essentially turning a simple sword swipe into a giant wave of death. It was first discovered (and exploited by) one of the developers.
80	** There was a bug that caused hovering robot enemies to explode TEN TIMES when defeated! Made certain missions with a large team look like a Michael Bay movie. Bonus: This bug was around for the 4th of July!
81	** Not so much a bug, but the Ritki Drop Ships that randomly invade the game zones are meant to be avoided, not confronted. [[https://www.youtube.com/watch?v=FHPk6oGXXcw Screw that!]]
82	** In the early days there were even more noticeable, surreal, and hilarious bugs that were eventually fixed:
83	*** SWAT muggings: Occasionally, female civilian models would be replaced with SWAT officers. This resulted in a SWAT officer struggling over his purse, and then doing a GirlyRun when you showed up to rescue him.
84	*** This glitch also occasionally happened with hostile [=NPCs=]. Trolls would routinely drop their purse, pull out a revolver, then scream like a girl and run away.
85	*** The City of the Damned: A strange brown fog covered King's Row. All the civilians were locked in place at telephone poles, eerily unmoving and staring out to the street.
86	*** Super Fun Happy Slide: civilians would get stuck on a loop, running up the back of an underground bunker and then sliding down the front door. Sometimes 50 or more civilians would be taking the SFHS. When the bug was fixed, the devs left a plaque on said bunker commemorating the villainous mind control plot that took place on the spot.
87	*** "Saved" civilians typically run to the nearest functioning door so that they can exit the world. Quite often this is the door to the same hideout full of villains that the players are about to enter. The "infinite treadmill" effect above was because that particular door was technically functional, but also permanently ''locked.''
88	*** The Apathetic Mobster: A particular Family member in St. Martial who would stand on a corner reading a newspaper, and responded to any attack by... ignoring it, although it did do damage. Even when knocked down, he'd just get back up and go back to his paper.
89	* ''VideoGame/StarWarsGalaxies'' had been riddled with hilarious bugs. At one point, when a mob or NPC would spawn "incorrectly" for various reasons, they would instead spawn at the center of the planet at coordinates 0,0. Hundreds of mostly hostile mobs could accumulate between server resets. Going anywhere near this area would cause insane lag and even high-level characters would be dead before they could even react.
90	** The game featured fireworks and fireworks launchers. When they were first implemented, players quickly found that one could use the launcher to "launch" ''anything'' in the game into the air, and they wouldn't come down. Cue hundreds of players frustrated as quest [=NPCs=] float inaccessibly in the air, players stuck in the air, and even entire cities hovering twenty meters above where they should be.
91	** Another bug allowed players to put other players in their inventory. It's unknown what this looked like on the side of the victim, but it required GM assistance to fix.
92	** Early in the game, players could use the /pickup command to pick up not only items that belonged to them, but any item in the world that could be targeted. Savvy players used this to rob NPC locales of furniture and items, some of which have never been attainable through legitimate means. The glitch was fixed quickly after it was discovered, so only a few items made it into the player population, but they tended to sell for massive prices when placed up for sale.
93	** ''Star Wars Galaxies'' was originally designed with 10 planets; three of these planets (Yavin IV, Dathomir, and Endor) were supposed to be wild adventure planets, where players were unable to build houses and structures. However, for the first few months of the game, players could still place houses on these planets. SOE quickly removed the code that allowed for houses to be placed on these planets and told the owners of existing houses that they had best move or risk having them deleted, but the threat was never followed through on and a handful of these "wild houses" still existed right up to when the game shut down.
94	** Arguably the most influential glitch of the first three years of ''Star Wars Galaxies'' was buffing. Doctors could buff a player's stats, raising them to higher-than-normal levels for a limited amount of time. However, the designers failed to take into account what sort of buffs could be created with the best materials available (purportedly due to a glitched calculation in the game code), and, as a result, doctors were soon able to buff players' stats to superhuman levels for three hours at a time. Enemies that were supposed to require a group to take down could now be comfortably soloed. Soon, you weren't considered prepped for combat unless you had these buffs onboard. SOE's first reaction was simply to make new content geared for these buffs (I.E. with insanely overpowered enemies), although when they decided to revamp the combat engine, buffs were one of the first elements to meet the chopping block.
95	* ''VideoGame/LaTale'' has the Invoke bug, which allows you to completely direct all of the boss' attacks away from the players in exchange for only using long range attacks and one player sitting in some (rather harmless) lava. Given almost every boss will be ''{{that one boss}}'' when you first fight it, and Invoke is the first instance boss in the game, you can see how a lot of players would be quick to exploit it.
96	* One of the bosses in ''VideoGame/ChampionsOnline'' loses his arms when down to 1/3 health, using eye beams and chest blasts. However, if he heals up above 1/3, he will resume use of the Shockwave attack, which consists of pounding the ground with your arms repeatedly. Despite no longer having arms.
97	** On occasion [=NPCs=] in the game will sometimes stop attacking or moving at all, allowing some end-game bosses to be killed by a single player of any level, with enough patience.
98	** There was a enhancement that was supposed to increase the characters height by a few feet and increasing strength , instead it left them 50 feet tall. It was purely cosmetic, but I was sad when they fixed the bug.
99	** Using a slash command used to correct various animation glitches while dead used to be able to allow your character to ''stand back up'' and [[DeadCharacterWalking move about with 0 health]]. You could do emotes while in this state, and the emote would loop repeatedly, even while moving. You could walk around, but were unable to use any powers and as soon as you targeted anything, you would fall back down again.
100	* In ''[[Website/GaiaOnline zOMG!]]'', players used to cherish the Turtle ring for its ability to raise your defense so high that enemy attacks would deal negative damage and heal you. An update that overhauled the game's defense mechanics and rebalanced the rings put an end to this, and one of the devs stepped forward to declare that a) this behavior was due to a programming oversight that could have been easily corrected (but for some reason wasn't until now) and b) the Turtle ring was never intended to have any healing properties. Naturally, some players complained about the loss of such a beloved GameBreaker.
101	** Before one of the general bug fixes, it was possible to cast buffs on [=NPCs=] due to either a programming mistake or [=NPC=] interaction in battle being hastily DummiedOut late in the planning stages. Players used the bug to amuse themselves by stacking Coyote Spirit and Fleet Feet on the Pizza Guy in Barton to make him run insanely fast.
102	* The physics engine of ''VideoGame/{{Planetside}}'' could be exploited in several useful, or amusing ways.
103	** It is possible to use techniques that cause aircraft to turn in a much tighter radius than normal, and even cause the plane to appear to teleport to an observer.
104	** Ramming certain vehicles together when both are occupied can cause a 'launch,' sending vehicles rocketing through the air at insane speeds, as demonstrated in this [[https://www.youtube.com/watch?v=IM1y354nIbI video.]]
105	* ''VideoGame/EarthEternal'' has a cosmetic one: If you perform a special attack (one with [[PowerGlows glowy effects]]) while swimming, the effects 'stick', resulting in Rogues who look like they have [[LaserBlade lightsabers]] or mages with glowing power fists. Some players do this intentionally as a form of customization, and the "Fire Hand" one (Flame Spear spell) is an excellent lag test: if you run around with it and the fire trail is smooth, your lag is very low.
106	* There was an interesting bug in ''VideoGame/{{Flyff}}'' where equipment with stat bonuses decrease your base stats when unequipped instead of returning them to their original values. This made negative INT possible; since buff duration is based on INT, it could make buffs that lasted real-time days. [[TheMedic Assist]] classes practically made a living out of this by charging obscene amounts of Penya to anyone who wants to have one so they could do LevelGrinding without stopping unless they die.
107	* ''VideoGame/StarWarsTheOldRepublic'' had an interesting one during Early Game Access when random [=NPCs=] would suddenly be reduced to a height of about six inches during cutscenes. The other characters would continue to talk while looking down at their lilliputian allies, while the camera would occasionally focus down on them.
108	** It continues to have a bug, caused by a rare interaction between animation states (usually when a creature recovers from a status effect with an animation and dies in the same instant), that results in dead enemies who don't look dead -- usually frozen in their "stand" position, although other stances happen regularly.
109	*** This same bug (likely with the same explanation) occurs if you skip through dialogue with the space bar at the right times. By doing this, you can skip animation queues, which result in hilariously out-of-place situations, like a criminal begging for his life while threatening you with an invisible gun.
110	** Another well-loved bug was "The Orange Pixel", which caused an orange pixel to persistently appear in the chat box during beta. Although it was fixed for the live version, many forum users still reference it in their signatures or posts.
111	** One for the endgame: During the Scum and Villany Operation, Dread Master Styrak will throw a random player into a nightmare where they have to kill their own companion to escape. Pretty straightforward, right? Well, sometimes you end up having to fight two of your companions, or even some ''other'' classes's companions!
112	** The Esseles, the "tutorial" Flashpoint for Republic players, has been a mess of glitches ever since release going on into Knights of the Fallen Empire. Certain NPC's have been known to get "stuck" in cheering animations, skyboxes disappear at random times, and sometimes important characters just slide into the floor.
113	** When ''Fallen Empire'' launched, all of the companions that players previously owned had not only their main hand weapon sent to your inventory, but also their ''pants'' as well, and some even lost more than that. There was also a bug allowing players to go to the opposite faction's fleet, so Sith partying on the Republic Fleet were an occasional sight, and a bug that allowed Jedi Knights to have two versions of T7-01 after they're reunited with him.
114	** Patch 4.7.2 caused almost all non-hostile [=NPCs=] to start [[OrnamentalWeapon carrying Vibroblades]] on their backs [[https://www.reddit.com/r/swtor/comments/55v977/somehow_everyone_in_imperial_intelligence_decided/ causing]] [[https://www.reddit.com/r/swtor/comments/55xrob/vibroswords/ amusing]] [[https://www.reddit.com/r/swtor/comments/5652ce/that_joke_is_so_pre472/ moments]].
115	** Patch 5.4 was probably a definitive example for the game: all quests in the daily areas had their base Command XP reward increased by a factor of 15, from 75 to 1125. While this was definitely not intentional, this resulted in higher player activity, with daily areas having population not seen since they were first released. Bioware eventually agreed this was a good thing and not only announced there would be no punishment for using this bug, but intentionally left it unfixed for over a month.
116	* ''VideoGame/RagnarokOnline'' has a few. One example was when special equipment sets for [[PlayerVersusPlayer PvP]] were introduced. They decreased the damage you received from players but greatly increased the damage from monsters including bosses. Quite soon they were started to be used to kill bosses using damage reflecting skills. Was fixed though.
117	** Another one was with a monster - Increase Soil, that would copy itself by a small chance on attack. The attack needn't actually hit, so stacking dodge, you could make hundreds of such mobs.
118	* ''VideoGame/ShinMegamiTenseiIMAGINE'' has a rarely discussed yet very well known bug among the player base. In the ''Old Ichigaya Camp (Gold)'' dungeon, if you time your walking right, it's possible to simply skip all floors starting from 12F (it has 35 floors). A lot of players abuse this bug to farm the cards on the 35th floor, which lets you enter a special boss room in the same dungeon.
119	** There used to be a rather famous bug known as "Sitting Glitch" or "Buttslide". If you entered a LoadingScreen while sitting, you would be able to [[ExactlyWhatItSaysOnTheTin move while sitting, effectively sliding on the floor]], allowing you to keep the increased HP and MP regeneration while fighting. If you used any skill, you'd get up, but kept the regeneration buff until something hit you. It was fixed on version 1.605, though.
120	** And then version 1.605 introduced a new bug: the "buff bug". During a maintenance, sometimes a player would be stuck with all the buffs they were when the server went down everytime they went through a LoadingScreen. This allowed for players to have [[GameBreaker 100%]] LimitBreak [[GameBreaker chance]], [[PeninsulaOfPowerLeveling spam a cash shop run for free]], and abuse the Care command (which allowed for the ultra rare [[RareRandomDrop Midgarsormr and Laevateinn]] weapons to flood the market). It was fixed in august 2012, almost a year after it was introduced.
121	** When version 1.605 was first implemented, it [[EpicFail removed the AI of all the enemies]] in the ''Old Ichigaya Camp'' dungeon. You could do whatever you wanted to the enemies (including using Liberama or Taunt, skills used to draw aggro) and they would never ever fight back. They rushed to fix it once people started posting screenshots and videos on the official forums of their lv20 demons with default skills and no rebirths soloing the boss room.
122	** During the Kappa Event, there were enemies called ''Kappa Bullies'' that would spawn in Ichigaya, Nakano and Shibuya, and would give a ''lot'' of experience. One variation of those demons, the Kappa Bully Azumi, was bugged in Ichigaya, and would give ''[[PeninsulaOfPowerLeveling ten times the experience it was supposed to give]]''. Said variation was the weakest of the Kappa Bully demons, mind you. A lot of veteran players abused this to power level [[{{Altitis}} their other characters]], and some newbies did it too, but in their case, most of them ended up [[StatGrinding with a lv80+ character that couldn't do anything]]. Took them a week and a half to fix this, but by then the damage was already done.
123	*** The Kappa Event itself was a bug. The US server was never supposed to receive that event (this was confirmed by Creator/AeriaGames when they decided to hand out the special outfits made for this event without the event itself), but Creator/{{Cave}} accidentally let the Kappa Bully demons slip in one of the updates. Atlus Online then requested the event wasn't removed due to popular demand, and kept the original schedule for the event. They skipped the 2nd part of it, though.
124	* ''MU Online'' during its late beta stages, somewhere around v0.94-97 (open to play, of course) had an interesting bug involving trading. To get it to work you needed to unequip your weapon so that it hovered under your mouse, point at another player and type the "/trade" request. If the trade prompt timed-out (no yes/no answer from prompted player) your weapon would (seemingly) disappear. Your client would now treat you as unarmed but deal damage as if you still had your weapon equipped. The point? Swinging your fist was at least twice as fast than swinging any weapon, resulting in 2-3 times more DPS than normal. Elves could do the same with bows and crossbows. The bug was not addressed for at least a couple of months. Best part? For everyone else your weapon and its animation played normally, so it was nigh indetectable.
125	** After the Dark Lord class was introduced there were some issues with the health of Raven - Dark Lord's newly introduced pet, so devs made him indestructible. At the time, the Raven would attack once per each click of the mouse, either randomly around or at pointed target. Result? Clicking tools that made the DL one indestructible powerhouse eliminating even the most powerful bosses in a matter of split-second, wiping the events clean and thoroughly dominating the [[PlayerVersusPlayer PvP]]. It didn't help much that the Raven could attack at least 2 tiles farther than any other character. While the developers quickly addressed this, some privately-owned servers left the things as they were, ultimately leading to their own [[GameBreakingBug demise]].
126	* Certain weapon types in ''VideoGame/PhantasyStarOnline2'' have advanced attack-cancelling combos which enabled players to move faster than the standard walking speed. According to a developer livestream, this behavior was not intended, but because the technique was so popular, they decided not to try to fix it - instead, they decided to ''increase the maximum movement speed globally'', as to effectively "match" the top speed that this technique granted, thus theoretically nullifying its usefulness. Interestingly, the technique is still rather useful, as the max running speed is not instant - the character must not have its weapon drawn, and must gradually build up momentum in order to reach max running speed - but the attack-cancel dash and similar techniques still allow more skilled players to move more quickly immediately out of an attack.
127	* In ''VideoGame/RuneScape'', after the Evolution of Combat, boxing gloves are for some reason classified as two-handed swords. While they are still incredibly weak joke weapons, it allows for lots of cool animations that were originally only meant for a {{BFS}}, the epitome of which is Meteor Strike, where you leap above the screen and smash down with a [[GroundPunch ground-shattering punch]].
128	** Similarly, for a while a bug when chopping ivy would cause the animation to use whatever your main-hand tool was, whether or not it was a hatchet. So you could see players slapping the overgrown wall with their boxing gloves, or whacking it with a live salamander.
129	** The Arc release has a feature where players can explore and collect resources from uncharted islands, each with procedurally-generated topography, flora, fauna, and custom lighting. Players immediately found a bug where said custom lighting will remain in effect if you teleport from the uncharted islands. Naturally, some have used this for landscape photography, screencapping Runescape's existing SceneryPorn in [[{{Pun}} a whole new light]]. [[AscendedGlitch Custom skyboxes, lighting, and camera modes became an official feature in May 2017]].
130	** [[https://runescape.wiki/w/4_tick_auto_attack 4 tick auto attacking]] is a exploit that lets you quickly fire an extra magic attack by switching weapons and activating a spell and ability at with just the right timing. Jagex was planning to remove this but ended up deciding to leave it in, although they did patch the game to prevent continuous 4 tick auto attacking, which let players attack very quickly with the damage of a slower weapon using a similar but more difficult trick.
131	* ''VideoGame/DungeonsAndDragonsOnline'', in its beta, had a bug where using your diplomacy skill on a chest would convince it to give you better loot. It got fixed before release, but some players still tried to do it anyway. Since then, the system was changed so that diplomacy is a passive skill.
132	* ''VideoGame/FinalFantasyXI'' Dark Knights have a spell Dread Spikes, which reflects damage dealt back to an attacker and heals for that much instead. Balanced by wearing off after a certain amount of damage dealt and with a hefty recast time. In one patch Samurai were given a job ability Seigan, which improved two-handed weapon use and was meant to reduce the recast time of their Third Eye ability, a one-time dodge. Due to a glitch, when subbed, Seigan would reduce the recast time of Dread Spikes to 15 seconds as well, letting it be refreshed often enough to make them effectively unkillable.
133	* ''VideoGame/FinalFantasyXIV''
134	** When Blue Mage was introduced, there was a design decision to not let the job run dungeons normally in the Duty Finder due to the potential GameBreaker skills a Blue Mage could have. Since dungeons are the primary source of XP outside of quests, the developers tweaked the XP reward multiplier of Blue Mages so players could more easily level up by killing regular mobs. However, this led to some unexpected side effects: if you can get another player to weaken a high level mob and then deliver the finishing blow yourself, you get a massive XP reward, or if you have your Chocobo companion out, it too also gets the XP multiplier, making leveling up the Chocobo trivial. While the devs acknowledged this, they said they can't do anything about it without overhauling the character development system and instead encouraged players to level up the job as was intended. The glitch was eventually patched out.
135	** Viera and Hrothgar were added as new playable races in the ''Shadowbringers'' expansion. Originally, they weren't going to have headgear visible due to the complex nature of their heads, faces, and hair. The developers managed to get some headgear visible, but some of them also glitched out and removed the character's hair entirely while having a big empty spot on their heads.
136	** In Squadron content, your NPC allies are set to obey your orders to attack or retreat. There was a glitch with the order to attack where it would reset the cooldown of your party's skills, thus spamming it would have them use their strongest skills at every turn. This was eventually patched out.
137	** Squadrons also had a unique LimitBreak which, when executed, would do massive damage to the target and give the player and the rest of the party a huge damage boost for several seconds. Due to an oversight in the programming, it was possible to use the unique skill outside of Squadron content where it wasn't intended. The exploit went unnoticed by the developers for ''months'' until they finally caught wind of it and saw some players were using the exploit in [[HarderThanHard ultimate trials]]. Everyone that got caught were hit with account suspensions or permanent bans. On top of this, the developers also pointed out how one player that used the exploit in the ultimate trials [[EpicFail couldn't clear it even with their cheating]].
138	** During ''Shadowbringers''[='=] Alliance Raid, The Copied Factory (based off of ''VideoGame/NierAutomata''), there was a rare glitch that would happen where, during the final boss of the raid, a dragon would randomly spawn for players but not everyone could see it. It turned out to be a strange bug occurring for players who did the level sixty Dark Knight class quest, but the fact the dragon spawned in a raid based on ''Nier'', a game set in the same universe as ''VideoGame/{{Drakengard}}'', and produced by the same creator, Creator/YokoTaro, caused a huge EpilepticTrees in the community until it was patched.
139	** ''Stormblood'' {{ascended\|Glitch}} abuse of Red Mage's chain-casting ability from previous ''Franchise/FinalFantasy'' games: with every spell cast, the player in question is able to dualcast ''any'' other spell they have, without having to spend time casting it. Primarily, this is to use the more powerful elemental spells, which deal more damage than the standard Jolt but have much longer cast times when used on their own, though it can also be used to skip the cast times for healing spells, including the class's version of Raise in an emergency.
140	* ''VideoGame/{{Tera}}'''s world collision is extremely dodgy around the edges. Simply walking slowly appears to entirely bypass checks on slope steepness, and mounts can often jump over or ''through'' short barriers. There are very, very few, if any, out of bounds areas you ''can't'' get to, and once there, a surprising amount of the normally-distant scenery has a pretty coherent collision mesh. Perhaps the most blatant example is glitching underneath Velika, where there's a convenient flat plane to wander around and see the city from underneath.
141	* The [[AlchemyIsMagic Alchemy]] feature from ''VideoGame/NexusClash'' has a bug wherein if a potion recipe has all unique items (that is, each item occurs exactly once in the recipe) the alphabetically ''last'' ingredient in the recipe is not used up when making a batch of potions. [[AscendedGlitch Rather than being patched, this bug has been kept]] because it is loved by the players and dev team alike. The bug turns the previously random Alchemy feature into a minigame that requires strategic thinking to choose optimal recipes which save the best ingredients.
142	* ''VideoGame/PiratesOfTheCaribbeanOnline''
143	** With the addition of potion brewing came a glitch that occurred upon rapidly clicking on the same potion to drink multiple at a time. After using this glitch, the effect of the drunk potions would linger until the player logged out, instead of for the obligatory time limit. This glitch was dubbed the "Swift Foot Glitch" due to most players using the Swift Foot potion to increase their speed for the duration of their session. Unfortunately, this glitch was patched out in the remake, ''The Legend of Pirates Online''.
144	** Before the Ravens Cove Story Quest was implemented in ''The Legend of Pirates Online'', players had found an area on the island of Ravens Cove with glitched collision that could be exploited to glitch inside of the island. By swimming around, a player would be able to access [[AbandonedMine El Patron's Mine]], which was intended to be inaccessible at the time but was still fully created in order to prevent crashes, including the high-level enemies within. This gave medium-high level players a spot to grind without interference such as experience leeching. Of course, now that the Ravens Cove Story Quest has been added to the game - and with it, a proper way to access the Mine - the glitch isn't necessarily useful anymore, although a low-level player can still use it to enter the mine far earlier than they're supposed to.

Context GoodBadBugs / MassivelyMultiplayerOnlineRPG