History WeaksauceWeakness / VideoGames

** Good news for Groudon: Its primal form picks up a secondary Fire typing, so it's no longer weak to Grass Knot. The downside is that the only thing staving off its double weakness to Water-type attacks is a unique weather condition that nullifies water moves. Outside of Rayquaza, there happens to be one family of Pokémon whose ability can dispel that condition, and it also happens to be a Water type. Which means that Primal Groudon now lives in mortal fear of ''Psyduck'', whose ability lets it ignore weather.

** [[VideoGame/PokemonUltraSunAndUltraMoon Ultra Necrozma]] had, at the time of it's creation, the highest practical stats of any Pokémon ever due to having an aura that boosts all it's stats by 50%. However, if you have a Pokémon weak against psychic attacks as your last team member, a level one Zorua can utterly wreck it by spamming Foul Play[[labelnote:*]]Ultra Necrozma will continuously spam its signature move Photon Geyser, which will do nothing. Meanwhile, Foul Play does damage to the enemy based on their attack rather than your own, effectively making the opponent attack themselves with a powerful Dark-type attack.[[/labelnote]].

** Poor Shedinja. Its ability, ''Wonder Guard'', is great (invulnerable to all direct damage moves except for the types it's weak against), but it only has ''one'' hitpoint, and its type (Bug/Ghost) gives it ''five'' weaknesses--including types and common moves that only an ''idiot'' would build a team without. That means it's only good against [=AI=] opponents that you know don't have those type moves (or any of the environment moves that would defeat it as well). Moreover, while it's invulnerable to direct damage moves, status ailments could affect it normally. Shedinja could simply be confused, and it would effectively commit suicide. Good luck leveling the poor guy without Exp Share.
** Inversely, Shedinja is an extremely viable option in the Legendary/Uber arena, in that most of the commonly used Legendary Pokemon have no moves that can penetrate Wonder Guard. For example, the near-almighty Kyogre will be generated most of the time with no powers that can hit Shedinja, letting the tiny bug [[DeathOfAThousandCuts cut him to death]]. If you can take out the one or two (at most) Pokemon that could beat Shedinja, you've practically assured yourself a victory.

** Several moves and other things introduced in the fourth generation of the games can cause examples of this trope. One of the most hilarious: a Grass-type move called Grass Knot that is said to work by tripping the opponent, and does more damage the heavier the opponent is. The result of this is that the heaviest Pokemon in existence, the Ground-type [[http://bulbapedia.bulbagarden.net/wiki/Groudon Groudon]], can often be ''tripped to death in one hit'' by something as small as a [[http://bulbapedia.bulbagarden.net/wiki/Pichu Pichu]].
** Good news for Groudon: It's primal form picks up a secondary Fire typing, so it's no longer weak to Grass Knot. The downside is that the only thing staving off its double weakness to Water-type attacks is a unique weather condition that nullifies water moves. Outside of Rayquaza, there happens to be one family of Pokemon whose ability can dispel that condition, and it also happens to be a Water type. Which means that Primal Groudon now lives in mortal fear of ''Psyduck''.
** Dragons are weak to Ice-type moves. This means that pseudo-legendaries like Salamence and Garchomp can be taken out in one hit by an Ice Beam from a Cloyster. As of Pokémon X and Y, they're also weak to Fairy-type attacks. Averted with Kyurem, though, as Ice is its secondary type. As Fire-types resist Ice, too, this also applies to Reshiram. DoubleSubversion with the aftermentioned Fairy-type, but only for Kyurem.
** Double subverted with Kingdra. Due to its Water/Dragon type, the only super-effective type, for a really long time was Dragon-type attacks. [[note]]Dragon resists Electric/Grass but is weak to Ice. Water is the other way around.[[/note]] Come Pokémon X and Y, however, and there is the aforementioned Fairy Type. Moreover, there is Freeze-Dry, an Ice Type move which subverts the usual type relations, being super-effective against Water (along with Dragon), and therefore opening up a chance for a 4x weakness attack.
** [[GameBreaker Volcarona]] is widely considered one of the most badass Bug-type Pokemon. It and its pre-evolved form (Larvesta) naturally lose half their health from [[ThatOneAttack Stealth Rock.]] Just from switching in. Same with other Pokemon with double weaknesses to Rock, notoriously Charizard.
** All Pokemon that are weak to Water probably count, especially the double-weak ones. Using these critters in battles ''on the ocean'' is a common source of head scratching.

** Lance, the champion in ''VideoGame/PokemonGoldAndSilver'', is a dragon trainer. That is, he trains dragon-''esque'' Pokémon, not Dragon-''type'' Pokémon. This means all of his Pokémon are part flying, meaning all of them lose at least a quarter of their health to [[ThatOneAttack Stealth Rock]] in the remakes.
** [[VideoGame/PokemonUltraSunAndUltraMoon Ultra Necrozma]] had, at the time of it's creation, the highest practical stats of any Pokémon ever due to having an aura that boosts all it's stats by 50%. However, if you have a Pokémon weak against psychic attacks as your last team member, a level one Zorua can utterly wreck it by spamming Foul Play[[labelnote:*]]Ultra Necrozma will continuously spam it's signature move Photon Geyser, which will do nothing. Meanwhile, Foul Play does damage to the enemy based on their attack rather than your own, effectively making the opponent attack themselves with a powerful dark type attack.[[/labelnote]].

* The Aperture Science security androids in ''VideoGame/{{Portal}}'' will riddle you with bullets from their bottomless magazines ... unless someone tips them over. Then they plaintively self-destruct.

* Razputin in ''VideoGame/{{Psychonauts}}'' cannot go into deep water because of a family curse. Any time he goes near deep water, [[EverythingTryingToKillYou a hand made of water tries to drag Raz in and drown him.]] It's heavily implied that this is actually a psychosomatic weakness caused by Raz's psychic abilities rather than the curse being real however. Made funnier in Gloria's mental realm, where the cardboard cut out background for water will actually spout a cardboard cut out hand of water to grab Raz if he gets too close.

** Taken even further with BonusBoss Kangaxx. While he is definitely one of, if not ''the'' strongest enemy in the game, his death resistance is piss poor. There are so many ways of taking advantage of these, along with GoodBadBugs, that someone wrote the song parody "Fifty Ways to Kill Your Kangaxx." ("Use Protect Against Undead, Fred.")

** The fact that the Prinnies explode when thrown is an unfortunate weakness, as well. It doesn't matter how high the level and/or stats of a Prinny is, a simple toss is all it takes to do it in. Unless it's one of ''[[BonusBoss those]]'' Prinnies... In the Prinny games, said weakness can be exploited ''[[HilariousInHindsight by a Prinny]]'' against some particular enemy Prinnies.

** In ''VideoGame/FinalFantasyV'', the BonusBoss Omega, like hard bosses in general, are designed to have immunity to every status attack the player can throw at him... except for Romeo's Ballad. For some reason, this machine of death will specifically never be able to dodge a song about love, and will unerringly be frozen for a (very short) time because of it.

* The {{Bonus Boss}}es of ''VideoGame/ManaKhemiaAlchemistsOfAlRevis'' are ''very'' powerful, to say the least. However, they all share a common monster trait that renders them vulnerable to a certain character's ''normal physical attack''. Said character is one of the highest physical attackers of the game (plus, he also has a skill that increases his attack power ''even more''), and abusing the weakness will quickly increase the LimitBreak meter, allowing faster access to the uber-powerful [[FinishingMove Finishing Bursts]]. This is a saving grace, however, since one BossBattle has you fighting ''three Bonus Bosses at once''.

* ''VideoGame/Persona5'': The Reaper, a massively powerful BonusBoss meant for endgame parties will become paralyzed and can be easily killed in a few turns by even lower level parties when infected with the flu.

* An odd case in ''VideoGame/TalesOfPhantasia'', which isn't a conventional weakness, but more of a developer’s oversight. The BonusBoss of the BonusDungeon, Pluto, only has physical attacks, and one ridiculously long charging special attack, all of which have insane amounts of damage behind them, but must be used at close range. The first skill the main character ever learns is a long range, one SP cost move called "Demon Fang", which ''instantly pushes Pluto back and flinches him''. Hence, a BonusBoss battle where the heroes stay on oneside and nuke the poor guy and the lead constantly pelts him with Demon Fangs, while the boss sits on the other side of the screen defenseless.

* ''VideoGame/SonicTheHedgehog'' [[SuperDrowningSkills is extremely weak in water]]. Not only can he not swim, he also moves at an extremely slow pace when underwater, and sinks like a stone. Also, in ''VideoGame/MarioAndSonicAtTheOlympicGames'', Sonic wears a life vest whenever he participates in a swimming event. ''VideoGame/SonicColors'' gave Sonic an infinite jump underwater, and his Drill Wisp power works just as well underwater as it does underground.