Wonder Twin Powers



Wonder Twin powers: activate!

A good leash to amazing powers is the need for two characters to work together to activate them. Sometimes this is a supervillain and superhero, other times it's a superhero duo. Most of the time, the characters even get to be twins. Interestingly, their actual powers sometimes have nothing to do with their inherent twinness, unless their powers tap into specific eerieness.

Presumably, their in-built weakness is being ineffective unless they're together. Not truly related to a certain kind of "Wonder Twins." See also Synchronization, Sibling Team and Bash Brothers. Contrast with All Your Powers Combined.

Examples:

Anime and Manga

 * Miracle Girls fits the name so well that it might have been the trope namer. Mikage and Tomomi are identical twins (albeit with different hairstyles), who need to be in physical contact to teleport.
 * The original versions of Pretty Cure have individual powers of agility and strength, although nearly all of their magical attacks depended on contact with each other. It wasn't until Yes! Precure 5 that the Magical Girls could even transform by themselves.
 * Sailor Moon originally played with this trope by suggesting while Chibi-Usa's powers are mostly useless, using them with Usagi's similar ones results in something powerful. In the fourth season, this was taken further when they couldn't even transform or deliver a finishing attack without being together. Many fans cite this as a detriment to Usagi's role as the show's star, but also a plot device to handwave Chibi-Usa's increased screentime pushing out the main cast. Unlike Futari wa Pretty Cure and Futari wa Pretty Cure Splash Star, the noticeable age difference in the two made for some acrobatics to make sure the two just happened to be together at the time.
 * Also in Sailor Moon, Cyprine and Ptilol's strongest power requires the two to work together: one of them absorbs any incoming magical attacks, the other reflects them. Naturally, the Senshi defeat them by tricking them into separating.
 * Ho and Ban, the twin Bount from the filler arc in the Bleach anime. Although they can control their more-or-less identical "dolls" separately, their real power comes from the dolls working in tandem. When one twin is knocked out, the other has to control both dolls at once and ends up overwhelmed.
 * Digimon and their human partners. Which always gave rise to the question, how did wild Digimon evolve without The Power of Friendship?
 * It seems that it happens easily enough with time - there are isolated incidents of non-partnered Digimon being able to do it on their own, and it also seems to be hinted at with the level names in the original Japanese ('Child', 'Adult', etc). Essentially all the Power of Friendship does is let the kid partners skip a few levels for a couple of minutes.
 * The biggest proof of this is Gatomon: since she didn't get to meet her partner early enough, she had to survive all by herself. As a result she evolved naturally, and her Adult form is her standard form, meaning she doesn't need her partner's power to keep it that way. However, going beyond it does require her partner's help. Later seasons would have partners of all stages.
 * In Tamers and Frontier it seems they do this by killing each other and absorbing the loser's data. Even those seasons, though, have civilian Digimon of high levels, such as a Mega-level shopkeeper and old Jewish couple. (Well, the Jewish-ness may be limited to the English dub...)
 * A more traditional example is Nefertimon and Pegasusmon, who have an attack that requires both of them.
 * Xros Wars vacillates between this and Fusion Dance: some DigiXros combinations transform one character into a new form for the other to wield, such as Dorulumon turning into a cannon for Shoutmon to aim and fire.
 * The Goldion Crusher in Gao Gai Gar FINAL requires the authorization of the GGG (from the key held by Chief Taiga) and the UN (the key held by Swan White). Plugging them both into a pair of circular consoles causes the consoles to form the kanji for "victory". There's also Symmetrical Docking; an issue in the early series was deploying HyoRyu and EnRyu, as the combiner ChoRyuJin was the only one who could operate the Eraser Head missile.
 * Viola and Cesario from Kiddy Grade. Cesario's ability, "Driver", does nothing by itself, while Viola's power, "Calamity", can manipulate matter at the atomic level, but requires "Driver" as its energy source. (Tweedledee and Tweedledum also have an ability (Windstorm) that they can coordinate with each other, and in the last episode of season 1,.
 * Time travelers in Natsu no Arashi! depend on being close to each other to jump through time. As Arashi points out on her second trip, without someone else, she has no way to return to the present.
 * Also reversed in Cyborg 009. Psycho Electro 0010 turns out to be a pair of twins (+ and -) who die when forced to come into contact.
 * The protagonists Black and White and the Dusk and Dawn brothers in TEKKONKINKREET. Although its more of a spiritual connection than anything else.
 * Kikumaru Eiji and Oishi Shuichirou in The Prince of Tennis are Seishun Gakuen's "Golden Pair" and later on in the series are able to perform
 * Masao and Kazuo Tachibana in Captain Tsubasa with their Skylab combinations and Triangle Shoot. Plays even straighter in Video Game adaptions where they must be together to be any useful.
 * In The Lucifer and Biscuit Hammer, Yuki and Subaru have to hold hands to use their Strongest Spear and Strongest Shield powers.
 * The twins from Heroic Age were two of the strongest human telekinetics but they could only use their powers when together, though not necessarily in contact.
 * Campachino and Brindo from a One Piece filler arc. They use an ability called Combination Play, in which they magnetically attract and repel each other and say that they can do it because of their "brotherly love".
 * Hime Chen Otogi Chikku Idol Lilpri the 3 girls must be together to transform into Lilpri, this forces them to get along.

Comic Books

 * Aurora and Northstar of Alpha Flight have Flight and Super Speed individually, but can emit bursts of light and heat when touching.
 * This was later inverted when Aurora had her powers modified so she could use her light powers without touching her brother. Afterward, touching caused them both to lose their powers for a while.
 * After being stripped of his Green Lantern status, all-around troublemaker Guy Gardner got his hands on the yellow power ring once worn by the Lanterns' arch-nemesis, Sinestro, and found that it came with a significant drawback: It drew power from other power rings, so to keep it fully charged, he had to periodically seek out and fight other Green Lanterns. Given that Guy is and was the biggest Jerkass in The DCU and lovin' every minute of it, this wasn't a huge problem. (At present, Sinestro's ring and others like it no longer suffer this drawback, instead drawing power from their own power source like the Lanterns'.)
 * In Marvel Comics, Andreas and Andrea von Strucker, the Fenris twins, have to be touching to fire energy bolts. Following Andrea's death,.
 * When  Because they're creepy.
 * Hawk and Dove in the DC Universe.
 * Crimson Crusader and Imp of Marvel's Clan Destine: Unlike the rest of their siblings, their powers emerged at puberty, not at adulthood. But that same odd "twin factor" that gave them their powers early, causes their powers (Crusader controls gravity, Imp can generate and control radiant energy) to fail if they're physically too far away from each other.
 * One of the earliest examples (from the 1940s) of this was DC Comics' superhero duo TNT and Dan the Dyna-Mite, who had to touch their rings together (they had "positive" and "negative" charges) in order to activate their powers (superstrength and energy projection.)
 * The comic book series Capes features a duo of Punch Clock Heroes, Ed and Marshall, who can't be more than thirty feet away one one another or they'll weaken. Claire Voyant immediately sees the Power Perversion Potential. In the end, Marshall dies but the power still holds, forcing Ed to carry around Marshall's urn all the time.
 * In the end, to defeat a Big Bad, Ed swallows Marshall's ashes and is transformed into a new superhero who saves the day. (And then promptly leaves the planet.)
 * At least one version of the alien 'Blood Brothers' required them to be near each other in order to keep up their massive strength. Iron Man once beat them by getting Daredevil to lure one away, so their individual strength dropped.
 * Superman faced a husband and wife team called Sodom and Gomorrah. While touching, they could fire blasts that turned anything they hit into salt. Superman separates them and captures Sodom, but his wife escapes.
 * Played with in Irredeemable: twins Scylla and Charybdis initially only had powers when they were in close proximity to each other but it was later revealed to be untrue. Charybdis was the one with powers and Scylla was only ever borrowing from him.
 * The Jade Dragons of Astro City are a brother/sister martial arts team who can summon a giant dragon by lining their arms together.
 * Ball and Chain is about a married couple whose powers only work when they're together and are triggered by their physical contact. The problem: they were splitting up when they got said powers and have a lot of trouble cooperating. Secondary problem: Neither of them was aware of this caveat for a while, meaning that when Edgar ("Ball") got ambushed by bad guys he thought he was going at them with superpowers that were waning rapidly.
 * The New 52 version of Teen Titans supporting characters Thunder and Lightning, in addition to their respective electric and sonic blast powers, can fly as long as they're touching each other. Interestingly, only one of them has to want to fly for it to work.

Film

 * Reversed in Hancock, where once a pair of superheroes (a man and a woman) that were made for each other are united, they start losing their powers, so they can live normal lives.
 * The Double Dragon movie had this as the only way the two halves of the Dragon Medallion could be used without corrupting the user with its power, with Billy using one half and Jimmy using the second.

Literature

 * In Dragonlance, the only way to enter the Portal to the Abyss where Takhisis lives is to have both an evil mage and a good cleric activate it. Raistlin
 * In ''Mindstar Rising" (the sci-fi mystery novel by Peter F. Hamilton) the psi-boosted protagonist and his pre-cognitive partner are successfully ambushed when twin psychics are used to create a null-zone where their powers won't work.
 * In Son of Spellsinger, Jon-Tom's son and Mudge's kids have to perform together as a band to gain the full benefits of spellsinging magic. They're a trio, not a duo, but same idea.
 * In Xanth, after awhile, it's discovered that some groups thought to lack magic talents, such as Mundanes, goblins and harpies, can sometimes have shared talents that can only be invoked when they're in contact with the person who shares their talent. However, none of these guys are twins. Some examples are Gloha Goblin-Harpy's parents and a pair of Mundanes who have two different syndromes making one unusually short and the other unusually tall.
 * In the young adult fantasy series Twitches main characters Camryn and Alex are powerful twin witches separated at birth whose powers become super-strong when they work together.
 * The Morgan Llywelyn / Michael Scott novel Silverhand features a brother/sister villain team dubbed "The Duet", who are able to summon a World Wrecking Wave. For added Squick value, in order to do this they have sex.

Live Action TV

 * Maya and Alejandro Herrera from Heroes are playing with this trope - Maya's deadly poison emission is countered and neutralized by Alejandro's power, making them sort of like the Wonder Twins stuck on "Form of Mass Murder!" "Shape of Retcon!"
 * Shotaro Hidari and Phillip from Kamen Rider Double have to transform at the same time to form the titular Rider. The psychic connection powers of their Transformation Trinket let them easily do this even from across town, but if Phillip is unconscious, being chased, or just has something better to do, then Shotaro is screwed.
 * In addition, if it's Phillip who's in trouble, he can't transform unless he contacts Shotaro and has him put on the Double Driver.
 * Other complications include loss of synchronization paralyzing Double, and the fact that the Double Driver can (and has) been disabled by blocking off one of the ports.
 * Shotaro eventually gains the ability to transform solo into Kamen Rider Joker, but as a matter of preference only uses it when it's absolutely impossible to become Double, such as when the original Transformation Trinket has been disabled or.
 * Smallville had some Creepy Twins (though adults) who could generate force fields when their hands touched.
 * The actual Wonder Twins have since turned up. Complete with "Powers, activate!"

Multiple Media

 * The Skakdi race fom Bionicle have been granted Elemental Powers, but they can only be used in tandem. This is a safety measure -- since the Skakdi are Always Chaotic Evil but all hate each other. The prospect of having to work together is sometimes enough to keep them from tapping into the elements. Unfortunately, they also won the Superpower Lottery, so being unwilling to use elemental powers is hardly a hindrance to them.

Tabletop Games

 * Rant and Rave of the Mutants and Masterminds Freedom City supplement, are a brother/sister pair with sonic and visual distortion powers respectively, but can deploy a distintegration attack when physically touching.
 * One Dragon Magazine article introduced the Dvati, a race in which each individual member is actually a pair of twins who share a soul, to Dungeons and Dragons. They have to act in unison to cast any spell.

Video Games

 * Final Fantasy:
 * In Final Fantasy IV, Palom and Porom have the ability to cast spells together in order to produce miniature versions of two of the most powerful abilities in the game: Megaflare, Bahamut's ability, and Meteor, the ultimate Black Magic. However, these abilities were toned down in power significantly. Ironically, their high MP cost to both twins and long casting time made them very inefficient, such that given the twins' fast learning rate, they both become more powerful individually than together if you take time to level them up.
 * As an Augment, Twincast allows the final party to raise all their HP caps, buff physical and magic attack power, and cast a devastating White Magic spell. The same flaws still apply, so your mileage may vary, but it's Rosa's only other magic offense besides Holy.
 * Final Fantasy IX has Zorn and Thorn, twin jesters that give each other meteor and flare powers during one mini-boss sequence. The trick is to hit the jester who just received the power before he can use it.
 * In Spyro 2: Ripto's Rage/Gateway to Glimmer, in Scorch, the exiting cutscene shows siblings (twins? They don't say) Handel and Greta surrounded by armed soldiers in a castle. As the bad guys approach, Handel and Greta slowly move their hands together and when they join hands, their eyes turn red and they cast some sort of spell that knocks their enemies off the castle.
 * Pokémon has two abilities called "Plus" (exclusive to Plusle) and "Minus" (exclusive to Minun). Each raises the Special Attack stat of a partner with the other by 50% - but ONLY when both are present in a double battle. Their stats make them almost absolutely worthless in any other scenario.
 * As of Black and White, these abilities are no longer exclusive, plus/plus and minus/minus pairs still boost and can potentially be used to greater effect with the new Triple and Rotational battles. This is still a problem though, as none of the 3 new users are very good, and are fairly redundant with each other.
 * In Backyard Baseball, Ashley and Sidney Webber play much better when they are on the same team. They become the best pitchers in the game.
 * Suikoden plays this with characters with look-alikes. Each pair can perform combinations when they're in the same team. Suikoden V has the Prince and Roy. Tierkreis has Marica and Another Marica.

Webcomics

 * In the Order of the Stick book "Start of Darkness", it is revealed that
 * Killroy & Tina has the two main characters share super powers as long as they're within five kilometers of each other. They also suffer from Synchronization; if one dies, both die.
 * Dimitri and Alina Tokamak of Dresden Codak have superpowers activated by contact based around physics.
 * Parley and Smith Of Gunnerkrigg Court: both have powers that work individually (Teleportation and creating order) but together at least one of their powers seem to work better.

Web Original

 * In the Whateley Universe, the supervillains The Twin Terrors get stronger as they get closer together, with energy powers when they are next to each other. At a distance, they seem to be ordinary Exemplars. Next to each other, they outpowered Lancer.
 * Phobos and Deimos, the Fury Twins, have a fear aura. The closer together they get, the worse it grows. When they get too close, they can accidentally merge into a two-headed monstrosity with a fear aura so powerful it warps reality around them. They hate it.

Western Animation

 * The Trope Namers are the Shapeshifting Wonder Twins Zan and Jayna from The All-New Superfriends Hour. When they bumped fists to activate their powers, Zan could change into various forms of water/ice, while Jayna could transform into animals.
 * Sadly the writers were either unable or forbidden to come up with actual, useful applications for their powers. Their counterparts from the Superfriends comics of the time were much better with their powers.
 * Más y Menos from Teen Titans were Fragile Speedsters whose powers depended on physical contact with each other. They themselves are arguably derived from the Tornado Twins of DC Comics (who did not have this limitation).
 * Watch Thunder and Lightning make it rain. You know. Literally. However, each is individually powered as well.
 * Mermaid Man and Barnacle Boy of Spongebob SquarePants are a parody of this, with them yelling "Mermaid Man and Barnacle Boy Unite!" before activating their powers.
 * Transformers Animated: Jetfire and Jetstorm combine to make "Safeguard".
 * In fact all Combining Mecha have a bit of this, in that they're devastating in a Five Man Band, but nothing to write home about individually.
 * Oh, individually, they've got Playing With Fire and Blow You Away going for them, respectively. They're not overly reliant on Safeguard mode.
 * In Teenage Mutant Ninja Turtles (2003), assassin duo Mr. Touch and Mr. Go need to bump fists in order to (temporarily) access their powers: super-strength for Mr. Touch, super-speed for Mr. Go. Given that these fade in a matter of minutes, they're always together.
 * The WooFoo Aura attack from Yin Yang Yo requires the twins to quit fighting and work together in mutual concentration.
 * Parodied on one episode of Camp Lazlo. When Chip and Skip, the dung beetles, join hands and shout "Scum twin powers, activate!" they can call all the grime in camp to the area.
 * The Twins of Destiny was a French production in which the main characters, Jules and Julie, would hold hands and say "We call upon the (number) Power of the Seven Powers..." and then fill that last part in with whatever they needed the power to do.
 * In Captain Planet and The Planeteers, the Planeteers all had rings with individual powers but only when all five of them used them together could they summon Captain Planet.
 * Despite being sentient themselves, the Humongous Mecha in Robotix could only activate their transforming powers when they had human pilots.
 * In Drac Pack by Hanna Barbera, the three main characters can only shift from their human to their monstrous (and super-powered) forms by touching each other... and shouting "Whacko!"
 * On Codename Kids Next Door, the Kids Next Door Code Module is protected by a dual key system that requires two operatives to give their authorization codes to access it.
 * Magnokor of Inhumanoids is a borderline case, as he/they get referred to as a singular creature, but actually demonstrate two separate identities that argue with one another, even when merged as a two-headed monster. Only when split into two bodies can he/they trap Metlar in a magnetic field, and hence qualify for this trope.

Real Life

 * Related to this is the real-life "dual key" system for nuclear weapons- American nuclear weapons require two people (at least) to launch them.
 * This is basically a more extreme version of the ubiquitous safety trigger, in which two buttons must be depressed simultaneously in order to activate something dangerous, such as a taser or circular saw.
 * Valuable assets are sometimes protected by requiring more than one person to open a safe, sign a check, etc, so that any illicit access will require a conspiracy rather than just one person.