Alt-itis: A Summer 2012 update that introduced the now-gone Lesson Area allowed players to receive a single item that can generate a random Humanoid. At it turns out, many MANY powerful humanoids are possibilities (Including the supposedly never to be released again Type Zeroes), cue a large majority of the player-base making alternate accounts to get a chance at a powerful Humanoid. No longer the case as the NPC that originally gave that cube was changed to give a cube that rewarded a random item instead.
Players sporting low-liability bots with ridiculous weapons such as Blast Bazookas and Gatling Bazookas. Can front load hundreds of damage when used by smart players, and when you kill them they're barely worth anything. And they have more where that came from.
Done quite literally with Tarantulic, a spider bot with Web Gun, which inflicts the very annoying slow status effect. From Bad to Worse it goes if you put Winberrl arms on him, leading to stun, slow, AND being pulled in.
Vanguard Fencer, a RT only bot, does incredible damage even fresh out of the Garapon, and tends to stun anything he gets in range of, leading to a swift death. Fortunately, he has absolutely no defense against ranged attacks.
In the English version, this is an ascended fan nickname.
Goddamned Bats: They live on Arcantus. Also come in the form of Pterodactyls with breaker rifles in their heads.
Game-Breaking Bug: Let's just say that at times, it feels like Cyberstep doesn't fully test new content before implementing them into the game.
Client-crashing bugs caused by the use of certain abilities. Stuff like this usually gets patched out IMMEDIATELY upon discovery.
Invincibility bugs: A handful of bots were released and were discovered to have ways of making themselves invincible due to a bug in their abilities. As with the above, they're usually expunged quickly.
Trizelion: An L-sized land mech looking like something from the Brave series, with a sword that can be imbued with wind, fire, or electrical powers. The element we're concerned about is the electric sword's attack, which generates a shock sphere that inflicts the shock status on enemies. What's game-breaking about it is that ANYTHING that the shock ball touches has their damage reduction from their TGH stat DISABLED (and since the ball is large enough, this includes the user itself).Explanation The TGH stat governs two things: A bot's resistance to being stunned, and how quickly damage from consecutive hits will be reduced (the higher the stat, the greater the damage reduction applied on the next hit the bot takes, unless a certain amount of time passes). Cue bugged bot or object now taking full damage for each and every single shot that hits them, which is especially crippling for things have been tuned for TGH and rely on said stat's damage reduction from consecutive hits for survival during combat. What's further game-breaking is that the effects of this bug would not only affect just the bots that were initially hit, it would also affect all other bots owned by the Trizelion's player, and the player whose bot got hit with the attack. Even worse, the effects will persist across multiple arena matches and even game modes until the player(s) in question restarts their client. This was not patched out until weeks after Trizelion's introduction and the bug being discovered.
Transformation actions: We've already covered WB-based AURA and C21-style transforms. Now we cover the type of transformation that can actually break and leave you with a useless bot. There are bots introduced starting in 2012 who summon their weapons with a transformation action. Said action also completely removed all handheld weapons and replaces them with the summoned items. Why is this under game-breaking bug? If the bot in question gets stunned, or if lag starts messing with the player, the summoning sequence can be interrupted and 9 times out of 10 leave the player with a bot that was utterly unarmed and useless, as the summoning ability can only be used once.
Raphilim. Introduced into the game in early 2018, she had the misfortune/dubious infamy of behaving COMPLETELY DIFFERENTLY between game versions. For example, one of her movement abilities doesn't work as advertised in the EN version, and one of her attacks also did not work as advertised in the EN version. But the most damning of all was that her introduction also led to a not-insignificant amount of accounts consistently encountering a Critical Error when attempting to log in, which effectively locked players out of affected accounts. The resolution for that was messy. Some accounts were promptly restored, but a larger portion of the affected accounts were either rolled back many weeks, or were never fixed at all. To hammer the nail in the coffin, accounts that were migrated to the JP version while still affected by this issue would remain affected by this issue, effectively perma-locking the account.
The origin of Lagkuns (lagging players spamming Jikun's Flash Step, allowing them to outright teleport and phase through objects) and Hoppers (the Short Boost skill replaces the dash with a small jump ; it is known for messing with the targeting system). Opinions are divised on whether they're valable tactics or just annoying; however, the glitch allowing to spawn on top of the BRD area's giant sword is just plain awesome.
Stun Regain and Crimson Veil combination: Stun Regain is an ability where a bot that is stunned had a chance to recover a bit of its health. Crimson Veil, as previously mentioned, prevented the bot from being stunned. Combine both of these together, and you could basically heal by sitting on a cactus (all melee attacks proc stuns, and even under the effects of CV the game would still check to see if the attack would stun.)
Crimson Veil and Clearance/Hyper Shot revenge tunes: As mentioned above, the game still kept track of when an attack would've stunned your bot even while it can't be stunned. In addition to being to proc stun regain, this could also be abused to proc either one of the 2 statuses provided by those revenge tunes. CV + Clearance was a particularly potent combination on someone like Ivis, who had the ability to cast CV on herself. Combine with Revenge Clearance and you have something that can't be stunned, and can't be de-buffed in any way. This and the above were finally gone for good in a mid-2013 update, which prevented Stun Regain and Revenge Tunes from triggering while under the effects of CV.
Shaden: This L-size air mech has been around for since CB's early days, with his key feature being his unique flight pack, which offers unmatched flight speed (sets the FLY stat of the bot to above 40) at the cost of agility (the bot cannot turn as quickly). Normally the pack's fuel tanks provide enough fuel for approx. 50 seconds of boosted flight time, said fuel is finite and un-replenishable, and the tanks themselves have to be jettisoned when they're emptied. However, the introduction of certain bots introduced after Shaden allow the tanks to be refilled when the flight pack is put on said bots. Every time this has occurred, this behavior is swiftly patched out in the next weekly update.
The Stun Rod in Cosmic Break 2 is a taser intended to stun the enemies, but thanks to Good Bad Bugs, it ends up stunning the user instead.
High-Tier Scrappy: Resha was far and away the most powerful "robot" in the game for a number of reasons. She could launch a myriad of homing lasers, create very sturdy barriers for herself (and depending on the cartridge path used, her allies as well), swing her staff with considerable force and, most notably, launch a Fantastic not-quite Nuke that hurt like hell, had an absurd AOE and tracking and jammed the guns of everyone hit. She was so overpowered that pretty much the entire Cosmic Break playerbase demanded that she be nerfed, even the players who used her with wild abandon. The Japanese server even protested with in-game signs! Eventually the players got their wish, and Resha and a handful of other recently-introduced and complained about robots were toned down.
This loading screen◊ from the Japanese version, involving a happy looking Crim, Lily Rain on top of said Crim, a turned on Jikun Hu, an... interested Jikun Long and... Lily's ass.
A lot of the pairs of moebots have some subtext... Eventually they just decided to give up on being subtle and add a character who was canonically a lesbian.
Low-Tier Letdown: Out of beta, while still generally regarded as the Queen of Melee, Ivis' Scrappy status has been significantly reduced... mainly because Aquila Girl is much, much worse. Simply locking onto an enemy with her Homing Blaster guaranteed around 40 damage with each shot, and she introduced the Full Boost ability which lets her recharge her Boost Gauge and maxes out her FLY stat. With Propeller Bits, she can stay in the air and rain green death for a very long time.
Berzeliusslams into you, often killing you instantly unless you have something like 600 HP, where you will usually get half of that taken off instead. Annoyingly, he tends to pull this attack out whenever he wants.
Fractulus fires a giant green laser that kills everyone who touches it. At first it only fires out of one end of the boss, but as its HP decreases, it eventually fires out of his back and rotates along the floating platforms faster.
Demonfox Haku is just made of this trope. All of his attacks either shave off about half your HP, break off some of your parts, inflict a debuff or just plain kill you.
Action Bomb C.S-chan who blows herself up and instantly kills everyone in range at low health, and you're likely to be a low health before killing her, because her earlier attacks are hard to avoid.
A non-boss example, instead one you can perform yourself if you get a Seraph Crimrose FC (and immediately earn the ire of every player on the enemy team if you do): she comes with a subweapon that locks onto six separate targets and fires a blue homing blast at each of them, sucking them in and doing well over 100 damage to each. The best part is that it's not even an Rt bot, it's obtained through pure UC (and a lot of luck in fishing a Seraph FC Promo from the UC Gara DX). Falls under Necessary Evil in the event of you not having anything else that can compete in the metagame, which is likely if you don't shell out cash for Rt.
That One Level: Any map that featured instant-kill pits, notable Temple Site. The map itself will kill more players than anything else. Don't be surprised if the participant number goes down when it comes up in the cue.
◊ from the Japanese version, involving a happy looking Crim, Lily Rain on top of said Crim, a turned on Jikun Hu, an... interested Jikun Long and... Lily's ass.
