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Jiggle Physics

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There's always room for Jell-O... especially in a D-cup.

Nerd: I've been waiting two years for Volley Ball Babes 6000! It's got way more bikinis than VB5K! Plus, I hear you can make the balls different colors!
Goat: I just hope they improve the secondary motion engine. It makes the, uh... backgrounds look awesome.

Jiggle Physics, also known as Soft-Body Physics, or sometimes Cloth Physics, is the art and science of simulating the behavior of non-rigid objects and materials in a computer. In this respect, it's a sister trope to Ragdoll Physics, which deals with more rigid structures.

The earliest uses of Jiggle Physics were not for simulating anatomy, but rather for hair and clothing. Of course, the computing power to simulate soft anatomy became commercially available much sooner, so for a relatively cheap gimmick it could be applied to body fat and the example which first comes to mind for most people when they hear the term, breasts.

Next time you play a game or watch an all-CGI movie or cartoon, take a look at what bounces and jiggles in reaction to physical stimuli. Whether it's the Badass Longcoat of the hero bouncing and flapping around as he runs, the gelatinous monster wobbling as it's pumped full of plasma fire, or Ms. Fanservice putting on a (perhaps unintentional) show, there's some pretty clever programming behind it.

For a more low-tech, more specific Sister Trope, see Gainaxing. Examples from sprite-based games should go there as they do not involve physics computations. Implementing Jiggle Physics almost always means an aversion of No Flow in CGI.


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  • Sports bra manufacturers Shock Absorber used jiggle physics to create what they called the Bounce-O-Meter, an onscreen device by which a woman could graphically see what level of stress a variety of sports put her breasts to. After selecting cup size and activity level, the screen opens up with a graphic view of heaving breasts, with a standard bra, a restraining bra, and no bra. (NSFW in a tasteful way.)

  • Asura's Wrath features this on some servant girls in the hot springs.

  • ANNO: Mutationem: This occurs with Ann, surprisingly not as noticeable as it could be, but she does have some bounce when she walks/run.
  • Batman: Arkham City's Catwoman has this. It's very subtle though. Harley Quinn from both games does as well, though less noticeable.
  • The Legend of Zelda:
    • The Legend of Zelda: The Wind Waker is the first game in the series to have a full-blown physics system for animating hair, clothes, flags, and grass, though The Legend of Zelda: Majora's Mask is the first in the series to have some type of jiggle physics (for a few of the masks). In The Wind Waker, the jiggle physics allow for some spectacular billowing effects, especially with Ganon's cloak during the final battle of the game.
    • The Legend of Zelda: Skyward Sword has this on Peater. You know. The fat guy. Yeah, him.
    • And the Moblins. You know. The ones in thongs. Yeah, them.
    • Like in The Wind Waker, there's also some physics applied to long clothing, such as Link's tunic and hat, and some items, such as the bug net. Pretty much everything except for women's breasts jiggle.
    • In Hyrule Warriors, Lana's and Ruto's chests bounce quite a bit in their idle animations, though for the former it's more noticeable in her Guardian of Time alternate costume. Cia's chest bounces a bit when she's in motion, as well.
  • In Luigi's Mansion 3, Gooigi wobbles around amusingly whenever Luigi applies force to him.
  • The entire selling point of Lula 3D was the "Bouncin' Boobs Technology" prominently advertised on the cover.
  • In Ōkami, wood-sprite Sakuya and priestess Rao both take full advantage of a physics system which was designed to show off everything that can bounce and sway. You know, their hair. (And busts.) While Sakuya is an Innocent Fanservice Girl, Rao is most definitely doing it on purpose.
  • Overlord II applies this to the scantily clad fairies, mermaids, and elven priestesses. Who are hideously obese.
  • In Ryse: Son of Rome, the goddess usually appears floating on the air or standing still, but in Chapter 7, we see her walking by foot, and her breasts get really bouncy. Really.
  • Senran Kagura exists basically to show off jiggling anatomy as much as possible. Interestingly, though, there's no actual physics there. The games use pre-set animations dependent on what else the model is doing, but there's enough variety you hardly notice. In a nice touch, there's a character who wears a literal Metal Breast Plate that stays static like metal while her breasts bounce inside it. This is the only piece of clothing that does this.
  • Later Tomb Raider games have it, as would seem obvious. The early games show exactly what is wrong with its absence; Lara's chest is literally Barbie-esque in its steely inflexibility, as if she were smuggling a pair of cannonballs in her bodysuit, or a pair of traffic cones if you played the first game. It's only in the cutscenes for Legend and Anniversary; Underworld has it in the gameplay itself. It's very subtle, but it is there. At least unless you use a user-made Jiggle+ PC mod for Underworld, which approaches Gainaxing.
    • In later games, the developers actually use the jiggle physics from Dead or Alive, below, for use in Lara's ponytail.
    • Speaking of her ponytail, the reboot uses a graphical effect called TressFX to render Lara's hair, all several thousand strands of it.

    Dating Sim 
  • Dream C Club, the Dating Sim mixed with Rhythm Game elements, it features a lot of girls, most whom are quite busty; a paradise with Jiggle Physics in full display everywhere.

    Driving Game 

  • UFC Undisputed has this for the ring girls Ariani and Shandella.
  • Bloody Roar: Primal Fury is particularly egregious with this. EVERY character has jiggle physics - the women in obvious places, but the men's biceps bounce as well. Apparently nothing below the neck is actually connected to the characters' skeletons. The character select screen in particular results in some unnatural rubbery bouncing, as the effect of zooming in on the characters is achieved by quickly moving them close to the camera - resulting in the men's arms bounching back and forth and the girl's chests swinging around in circles.
  • The Dead or Alive series is known for having it, playing with it, and selling the game with it. An age input on the second title actually determines how much the female fighters can bounce. The older your age, the more they do, up to a point that a 99-year-old man probably will not be able to play without a heart attack. Even while standing still they tend to bounce. A later Spin-Off brings it further to the forefront by transforming the game into a beach volleyball title and eliminating the male competitors. Their hair is also lovingly animated and streams all over the place as they move. Essentially this is one of Tomonobu Itagaki's defining traits of his games and is also highly prevalent in Ninja Gaiden, most notably in Ninja Gaiden Σ2, where you can affect Ayane's assets by shaking your controller up and down, and side-to-side.
    • In the Nintendo 3DS version, shaking the system while viewing collectible figurines of female characters will cause their breasts to bounce in relation to how you shook the system. And to think that originally, Nintendo wasn't going to equip the system with motion control at all...
    • Dead or Alive 5 Plus for the PlayStation Vita and Dead or Alive 5 Ultimate for the PlayStation 4 put the Jiggle Physics in your hands as well, taking after the feature in Ninja Gaiden Sigma 2, letting you manually jiggle any female character's breasts by swiping the PS Vita's screen in DOA5+ or jiggling the Dualshock 4 controller in DOA5U (after activating the Breast Physics' "OMG" mode in the latter's game settings).
    • Dead or Alive 5: Last Round makes use of the "Soft Engine", a secondary physics engine entirely dedicated to animating breasts. They don't just jiggle, though; they compress and deform if the forces applied call for it. From a technical standpoint, it's genuinely impressive.
    • The original 1998 game pioneered this, but instead of having anything close to a realistic jiggling effect, a female fighter's bust would cartoonishly bounce up and down somewhat slowly and at an equal rate of speed, as though her boobs were nodding in agreement about something. A lack of exaggerated timpani sound effects were the only thing keeping it from being outright comical rather then titillating.
  • The video game adaptation of Fight Club has this… on Meat Loaf's character. Have fun with that mental image.
  • In Injustice: Gods Among Us, Batman's Super involves attacking his enemy with two tazers, causing them to spasm uncontrollably. This presents some issues with more cleavage-y characters like Harley Quinn.
  • JoJo's Bizarre Adventure: Eyes of Heaven has jiggle physics on only one character. They're not on Jolyne or Mariah, though. They're on Tequila Joseph.
  • The King of Fighters has Mai Shiranui, the one woman who started it all.
    • The King of Fighters XIV gives all the characters 3D models, and with them, jiggle physics. While not nearly as iconic as Mai, Leona is especially noticeable in her new tank top.
  • In Lightning Legend: Daigo no Daibouken, this is the main animation feature of Misa Atago, the resident busty female character, to the point one's can wonder her breasts manage to stay in those Impossibly-Low Neckline clothes with all that bouncing. She's also the only female character having those physics, the other girls being the flat-chested Mayu Uzaka and the young Yuki Shirogane.
  • Magical Girl Lyrical Nanoha A's Portable: The Battle of Aces uses this for the characters' dresses, ribbons, and hair. In the Gears of Destiny sequel, they also apply it to some of the new characters' breasts, namely Alph, Rynith, and Adult Vivio.
  • Marvel VS Capcom 3: Fate of Two Worlds goes to town applying this trope to Chun-Li, Morrigan, Felicia and Trish (from Capcom's side), as well as Storm, Phoenix, X-23, and She-Hulk (on Marvel's side).
  • Mortal Kombat 9 has noticeable jiggle physics. It can quickly turn into Fan Disservice with all of the beautiful women in little more than underwear being brutally murdered. Jade's boobs bouncing from crouching or blocking? All standard. Half-naked Jade's boobs bouncing because her legs get snapped in two and her decapitated head rolls down her chest? A bit different.
  • Rival Schools is an early example of this with Tiffany's ample chest.
  • SmackDown vs. Raw 2011 has this with their divas, in both the breast area, and the buttocks region.
  • The Soul Series games display this, but it is very much downplayed and almost, dare say, "realistic", at least early on in the series. Still, it has many varying examples. While VI doesn't have a woman's boobs get compressed under her when she's prone, they will spread and interact with with the ground in a semi-realistic way.
    • The ninja Taki, whose breast movements, while they don't bounce too much, appear to be timed one full second behind the rest of her body.
    • Xianghua, in addition, also has buttock jiggle physics.
    • Astaroth has a chest that jiggles noticeably whenever his onscreen model moves quickly enough.
    • Voldo's ass jiggles in Soul Calibur 2.
    • Of course this was all thrown out in SoulCalibur 3, in which all female character with the exception of the underaged Talim have been given larger breasts and costumes that allow these to bounce around in a ridiculous manner, such as when you SELECT them in the character selection bit. Astaroth's chest jiggle is still intact. If you leave the shop while one of the storekeepers is gesturing, their boobs jiggle up at a ridiculous height, and then go back to normal.
    • By the time of the fourth game, cover-art character Ivy's move with so much momentum it's stunning the rest of her body doesn't follow them into a knock-out when she stops moving. It's considered part of the package deal, alongside destructible clothing.
  • Since Street Fighter IV is the first game in the series proper to use 3D models, it also added jiggle physics for nearly every character in the roster. Disturbingly, the most visible wobbling happens on the morbidly obese male Rufus. Unfortunately, 3D Edition lacks the physics, making things both less interesting and hilarious.
  • Street Fighter V brings it back. And, much like Rufus in the previous game, it's now the overweight Birdie whose big gut jiggles around.
  • Ibuki in Street Fighter X Tekken had this amped up for her. look at her hair when she wins. She also jiggles when she uses Pandora. One has to wonder if there is a bra up to the task of restraining such powered up breast.
  • Virtua Fighter 5 uses this. The breast size and the type of clothing the female character wears actually affects the amount of jiggle, making this a much more realistic and well executed example than most. The only character this doesn't effect is Eileen, the youngest girl in the cast. Inversely, Vanessa, who has Boobs of Steel, jiggles no matter what she wears.
  • X-Men: Children of the Atom is an early example, animating Psylocke with jiggle physics.

    First-Person Shooter 
  • Duke Nukem Forever. If it existed in 1996, Duke Nukem 3D would have had it, but advanced in technology finally allow Duke to enjoy jiggling boobage.
  • Halo initially had none of this, but Halo: Reach added subtle jiggle physics on Spartans' rear ends, and Halo 4 added this on female Spartans' breasts. However, the latter is quite difficult to notice; walking with a ripped-off mounted turret is the easiest way to see it.
  • Left 4 Dead adds jiggle physics to the Boomer, a extremely bloated zombie whose belly has grown out of his shirt. The sequel adds a female version of the Boomer with similar results in the jiggle. It's also used for Zoey's... ponytail.
  • In Portal, it is used to animate the protagonist Chell's hair.
  • SiN rather famously has Jiggle Physics for female characters in both games. In the first, they're hand-animated and can get kinda ridiculous in certain scenes. In SiN Episodes: Emergence, however, handles it a fair bit more subtly, almost realistically; there's jiggling going on, but the amount of it depends on things like the character's bust size and attire (e.g., the buxom Elexis bounces a lot more than the more petite Jessica), and you actually have to pay attention to really notice it.
  • Valve added 'jiggle bones' to their Source Engine. Modders quickly realized their potential for perversion and reacted accordingly. Witness The Scout's bat replaced with Thor the Giant Horse Dong of Deathhere (NSFW), or making the Scout's head use jiggle physics. Jigglebones were also added to the glove on the Pyro's hat; considering the Pyro is possibly a girl, that's the closest you'll get to Jiggle Physics on a Team Fortress 2 character. Unless you download one of the character mods that converts Pyro into a girl. (Well, a less ambiguous 'girl'.) Some other hats have also received this treatment since, including the Hustler's Hallmark (a pimp hat for the demoman, only for the feather) and the Pyro Brainslug. Even some weapons use the feature, such as, of all things, Mad Milk. Outside of the game, the Medic's forelock has jigglebones in "Meet the Medic".

    Hack and Slash 
  • Joy, a recurring enemy in the first Bayonetta, uses this when you perform the Torture Attack on her.
  • Female characters in Champions of Norrath jiggle... even if they're wearing plate mail.
  • Pretty much every named female character in Deadpool.
  • Honkai Impact 3rd features an option to choose the Valkyries' costumes. By moving your finger on the screen, you can rotate the Valkyrie to get a full look at the costume. Do it fast enough, and it becomes very evident that several of them have noticeable sway, although not to the extreme of actual Gainaxing. The concept is also lampshaded in an omake chapter of the game's Second Eruption comic, where Kiana, playing an in-universe version of the game, notes that Fu Hua (who already has a bit of A-Cup Angst) doesn't have jiggle physics, which mortifies her.
  • The modern Ninja Gaiden games - as made by the same team behind Dead or Alive - feature several fine ladies that bounce to almost comedic levels. In fact, in Ninja Gaiden Sigma II, you can shake the controller to make all present boobies bounce to your leisure.
  • No More Heroes 2: Desperate Struggle has them. However, instead of just being used for breasts, they are also used for things such as Travis's beam katanas dangling from his belts, his jacket, and his hair. It's also used in awkward ways, such as Chloe's butt jiggling as you slice her to pieces, or the moobs of the fitness instructor.
  • Kasuga from Sengoku Basara (a kunoichi sporting a... very revealing outfit) lacks jiggle physics in the first few games. It was eventually added in Samurai Heroes (where she is unfortunately downgraded to an NPC), though it's actually quite subtle and realistic.
    • Samurai Heroes also gives us Magoichi Saika, the gun-toting leader of the Saika Faction, garbed in a metal corset. When you position the camera to face her front side (to make it more visible, have Magoichi stand against a wall, which forces the camera to zoom in while positioning it), you'll notice that her breasts jiggle while moving, and slightly more so after dashing. Her breasts will also jiggle while performing her taunt, which is easier to notice since you can just station the camera in front of her without fighting to keep it positioned that way.
  • Used and abused in Senran Kagura in all of its incarnations, though the animations tend to be canned as opposed to being calculated in real-time.


  • In Donkey Kong Country: Tropical Freeze, Jelly Jamboree demonstrates this with the gelatinous cubes that make up the main gimmick of the level. At one point you shoot your way into a pile of them and they all jiggle as you pound on them in order to break free and continue.
  • The Floor is Jelly has this applied to the game world you explore, with the ground and walls fluidly wobbling and jiggling as you jump around. Even background objects such as trees and bushes bounces along with the ground!
  • This is the reason that Naughty Dog incorporated Papu Papu as a boss in Crash Bandicoot (1996); the character modellers found it fun to animate jiggling fat.
  • Shantae: Half-Genie Hero: Jiggle physics are at work whenever Shantae dances. they can also be seen when Risky moves in her bathtub and, quite prominently, during the battle against the Giga Mermaid, who is about fifty feet tall.
  • Rouge the Bat in Sonic Adventure 2 has this. Yes, they seriously used this on the breasts (and ears, note that they move in time with her chest) of a cartoon bat in a kid's video game. The eponymous protagonist and his Evil Doppelgänger have this applied to their quills as well. Something similar happens with the Chao in Adventure 2 and Adventure DX, with the orb above their heads.
  • Super Mario Bros.:

  • Project Diva F has this for Meiko, although it's more noticeable in her song "Nostalogic".

  • Any female character who has a noticeable bust in Agarest Senki 2 does these in HD sprites.
  • Done in the first Baten Kaitos Geldoblame's One-Winged Angel form. You will want to rip your eyes out.
    • Also done to certain shopkeepers in Baten Kaitos Origins.
      • The shopkeeper in your hometown has boobs that bounce with such force that when she bows at you, they pull off her model for a second.
  • Battle Chasers: Nightwar: Varies depending on Red Monika's model and outfit.
    • She doesn't jiggle during battles when wearing her default outfit. However, she has a much more detailed model for special attacks, and in the animation for "Assassinate" her breasts sway from side to side in her bikini top.
    • Her unlockable "Dark Lady" outfit shows underboobs, and she jiggles very noticeably in that. Oddly, there is less movement during the special animations.
  • Dragon Age II has major Jiggle Physics for the breasts of any female character not wearing plate armor, as well as some longer hair.
  • Seen in Dragon Quest VIII with the character Jessica. She has enormous boobs, which jiggle and bounce whenever she does anything, several different character models of her in skimpy clothing, and even a skill set called "Sex Appeal". Lampshaded in the game, when her mother chastises her for her choice of revealing traveling apparel.
  • Dungeon Fighter Online has jiggle physics on the female Fighter class, as well as the Thief class (which is exclusively female). Some female NPCs breasts move when they are standing stock-still.
  • There is a mod that allows this in The Elder Scrolls IV: Oblivion called 'BBB'.
    • Similarly, there is mod for Skyrim called 'BBP' that adds breast physics, which, when combined with another mod (CBBE), can be easily used to create large breasts (or the opposite if you so choose).
  • Endless Frontier has this for all ladies in battle, on their sprites and cut-in animations. Considering the sheer volume present, it can really throw your game off.
  • The Epic Battle Fantasy series has the character Natalie, a mage whose boobs bounce during the victory animation. Starting from the third game, clicking on them enough times earns you a medalnote .
  • Final Fantasy:
    • There are a few cutscenes where Tifa does this in Final Fantasy VII. Tifa's infamous knockers were caused by rendering limitations on the Playstation. The original character was supposed to have B- or C-cup breasts (as seen in concept art), but when the graphics programmers realized the issues at hand, it boiled down to huge knockers, or flat as a board. The team chose the former.
    • Dissidia 012: Final Fantasy uses it again for Tifa. It's especially visible in her opening taunt pose and EX-burst.
    • The remake keeps Tifa's Boobs of Steel (since they're basically a part of her character by now) and the Jiggle Physics, but handles it pretty realistically; the amount of jiggle depends heavily on what kind of outfit she's wearing, ranging from very noticeable when wearing a low-cut dress to almost nonexistent in her default outfit (which includes a sports bra). And even at its most visible, the jiggling never approaches cartoonish levels.
    • The Steam release of Final Fantasy IX gives this to Beatrix. Her model in the PS1 version is completely rigid, but here, every time she claps a hand over her chest in a show of loyalty, well...
    • In Final Fantasy X, busty gothic lolita-styled mage Lulu has breasts that move as if they're filled with water. If you end a battle with her hasted, they appear to jump like a prodded frog.
    • In Final Fantasy XII, Fran's buttocks do this at several points, most notably when she walks away from other Viera in Eryut Village. Unfortunately, so does Cúchulainn's stomach.
    • In Lightning Returns: Final Fantasy XIII, Lightning's breasts bounce, but it's kept to a realistic degree and, in a nice detail, varies depending on what outfit she's wearing.
    • Handled realistically in Final Fantasy XIV, where it's dependent on the outfit being used, and subtle even when present. Outfits that are revealing and/or visibly lacking support like the harnesses or the female Miqo'te starting garb predictably have the most, while any proper leather or plate armor tends to be totally rigid.
      • A notable occurrence of this comes from two boss enemies, Notably Living Liquid and Liquid Flame whose humanoid form has the buttocks jiggle almost constantly.
  • A decent fraction of all the animation in Global Agenda is in making the medic's goo tubes jiggle.
  • Neptunia has jiggle physics for not only the in-game models but also the CG cutscenes. It's more noticable if you check the CG Gallery and move them around. Notably, flat characters like Blanc/White Heart or IF have jiggling breasts, too.
  • Ironically, the Bioware RPG game Neverwinter Nights has only a single character model with jiggle physics - a woman wearing a bare-shouldered Breast Plate. The armour is solid, but apparently the breasts behind it aren't attached to the woman, or snug against the armour. When fan-content added jiggle physics to other character models, even the most rigid steel full plate armour will end up jiggling like a jelly castle. Most fan-made jiggle mods have boobs that jiggle in the wind. Other than that, A Dance with Rogues' Jiggle Physics make a bit of sense (all the outfits the character will likely be wearing are
  • In line with its largely breast-focused fanservice, the chests of all females in Omega Labyrinth Life bounce and jiggle vigorously at the slightest movements. This is most apparent in Tit-for-Tat, where they play rock-paper-scissors with their breasts, and bounce them before "throwing."
  • In Persona 3, the protagonist's music player (which he wears tied around his neck, like a necklace) and headphones bounce around realistically.
  • Used for hair, clothing and chests in Phantasy Star Online 2. In the case of the latter of the three, it's actually fairly subtle outside of numerous emotes that seem specifically designed to show it off.
  • Pokémon: Ever since the games switched from 2D sprites to 3D models in Pokémon X and Y, Miltank's udders have been rendered this way and visibly bounce during her idle animation.
  • In Scarlet Blade has attached jiggle physics to it's all female cast as part of the gratuitous fanservice it features.
  • Shadow Hearts: Covenant has Karin bouncing along to jiggle physics when she runs, but it's not her chest, it's her hair. The straps on Yuri's bag also seem to have jiggle bones in them and flap along behind him in response to his movements.
  • Star Ocean: The Last Hope has Myuria, whose breasts wobble all around the place even when she's standing still (as evidenced by the cutscene in which she's first fully revealed). This provides an answer as to why Reimi keeps her assets so securely bound in place. Her backside might be another story, though, as it shows signs of jiggling whenever she does any sort of action during battle, but one must be quick to notice when she's zoomed in.
  • Judith from Tales of Vesperia. In the PS3 remake, when performing her Second Mystic Arte, her animated-cut shows her hunnies jiggling for about a split-second as she throws her spear. Other few Tales characters, like Sheena from Tales of Symphonia, have it too, but it is not obvious unless you watch them move very carefully and up close.
  • Fie Clausell ends up having her breasts jiggle at the end of The Legend Of Heroes Kuro No Kiseki II while dancing. Very surprising considering the even bigger Rixia Mao doesn't do this in the same dance sequence and Fie isn't that big.
  • The game Vampire: The Masquerade - Bloodlines has numerous female models for the player to control, depending on what type of vampire he/she chooses. Oddly, only some of these have jiggle physics - others appear to have breasts made of solid metal. This makes sense, once you consider that the game is set in L.A., and that some of those characters have very tight dresses/tops, whereas others Malkavian are more like a loose band of cloth. The "money" cheat lets you edit size, just in case you needed to check. They developed a version of this technology, and were the ones who coined the term 'Jiggle Physics'.
  • Vindictus takes full advantage of Valve's physics engine to incorporate some rather... ludicrous movements to that area.
  • World of Warcraft features jiggle physics. Note that they were mostly removed from the Warlords of Draenor expansion's newly-introduced character models, but the old models can still be toggled.
    • Most female playable-characters in the game have some form of jiggle, but Female Tauren and Trolls have it particularly blatant - their idle animation has them stand there breathing while their huge boobs bounce up and down like they're busy on a trampoline. The female Dwarf has jiggle just from walking!
    • The female night elves are even more blatant. Their most common idle animation is to hop up and down on their toes several times. Boingyboingy! Their cowering/fear animation makes the bounciness especially obvious.
    • Depending on your personal taste, one of the Human female's idle animations could count as either an attempt at this or outright Fan Disservice - she just stands there, taking a few deep breaths - but the model's way of animating this is to keep her chest be stock-still and have her breasts subtly-but-visibly inflate and deflate instead.
    • Unusually, male elves also jiggle: jiggle physics apply to the ears of all elves.
  • Xenoblade Chronicles:
    • Xenoblade Chronicles 1: Many of the female characters have a fair amount of jiggling,and or Stripperiffic outfits, even on some of the Machina. Can be jarring in cutscenes where female characters are explaining their tragic backstories or giving long lessons on the lore of the world while still jiggling.
    • The sequel, Xenoblade Chronicles 2, is loaded with attractrive busty ladies. But only a few show jiggling. Pyra & Mythra have a subtle one (which carried over to Super Smash Bros. Ultimate), while Dahlia, Perun, and Vale have much more bouncy chests.

  • Saints Row: The Third has jiggle physics going full force short of the gelatinous monster. The Penetrator has three different sets.
  • Jiggle Physics were added to Second Life. As with all things, it can be manipulated and tweaked to your heart's content to create things that occasionally require Brain Bleach.
    • The Gainax-y flavour of the jiggle is rather enhanced by the fact that things like teleporting count as a movement that results in that kind of jiggle, as does sitting (because you basically teleport into the sitting position rather than moving naturally).
  • Spore. Oh god... With the right combination of body parts, anything can jiggle.

  • Monster Rancher, which is made by the same devs as Dead or Alive features the more perverse variant with the pixies' er, assets for the first two games, and a more wholesome, G-Rated variant with the Mocchis' and Hares' round, adorable, squishy tummies. The Pixies' physics were removed or toned down in later games, and the Hare's physics were only really noticeable in the first two games.
  • In Poker Night 2, Ash's spit curl is jiggle boned, similar to the Medic example above.

  • Metal Gear Ac!d 2 came with a pair of 3D goggles allowing you to see the breasts' undulatory movements in gropeable solidarity. To save time, the developers use the same physics set on the ludicrous ammo pouch Snake wears on his own chest. The effect is...well... Not to mention that Venus, when getting bored, hops up and down. Also, due to how models are spawned when a new area is loaded, everyone's breasts/ammo pouches will simultaneously, spontaneously bounce up and down. To prevent problems with e.g. someone's feet intersecting/sinking into the ground, they are actually created in the air and allowed to drop a short distance to the ground. Rendering can be delayed a second to hide the drop, but the afterjiggle...
  • For some really, really well-done Jiggle Physics, look at EVA from Metal Gear Solid 3. Unless you're paying attention, you won't notice - her breasts move exactly like a real person's. Particularly of note is the scene where, clad in her underwear, she crawls hands and knees towards Snake as part of an attempted seduction, and her breasts actually change shape - again, exactly like a real person's. The irony kicks in when it turns out that the woman has had bust enhancement surgery, which, using the techniques from the timeline she's in, would leave her rock solid.
  • Metal Gear Solid 4 takes this to its logical conclusion with interactive jiggle physics. Shaking the motion-sensitive controller while communicating with a female support character or fighting a female boss outside of her suit causes their breasts to bounce.

    Third-Person Shooter 
  • As a ridiculous Fanservice game, Bullet Girls Phantasia features a LOT of bouncing chests, as can be seen most prominently during S.O.D. attacks, intensive drilling, or the close-ups in the victory screen.
  • Fortnite character, Calamity, had subtle jiggle physics when she was first introduced in Season 6, most noticeable with the "Jubilation" emote. Unfortunately, they were quickly patched out, as it was "embarrassing and unintended", according to developer Epic Games.
  • PN03: Plenty of Vanessa's animations cause her butt to jiggle. Whether you're walking around, attacking, or even just standing still (which makes her tap her foot), it almost never stops moving.
  • Splatoon uses plenty of jiggle physics to show hair/tentacles bouncing and swaying in the wind. It also uses them in a more, um, traditional way (albeit subtly) with characters like Marina.

  • Jiggle Physics is Japanese H-Game maker Illusion's bread and butter. Depending on which game we're talking about, there may be sliders to adjust the amount of bounciness and the size of the breasts on the female character(s). Depending on the settings you choose, the results can range from subtle and surprisingly realistic to utterly ridiculous.
  • The proper scientific term for this technology, and the name it goes by in professional 3D graphics software suites such as Maya, Softimage, Blender, etc.; is "Soft Body Simulation". And now you know...
  • This feature was a shock and source of amusement to a lot of people discovering Nekopara on Steam, especially as it was the all-ages version. There are indeed sliders.
  • A Japanese development company took a shot at making the technology even better. In this VR simulation, the faster you run, the more the Gainax effect in the sprite you are looking at.
  • RWBY: The 3D animators have discussed in commentary and interviews that they do have jiggle physics present in the engine they use for the show. It sometimes causes problems for certain female characters, such as Yang and Emerald, whose models seem to be very reactive; as a result, their interventions usually involving toning it down rather than adding it in.
  • Fire Emblem Fates has this as well, but not on Camilla. It's on ~13-year-old Elise, as her hair is two giant springy twists. Noticeable enough in her standard classes, especially when riding a Wyvern.
  • The Artificial Intelligence 3D avatar of Junko Enoshima in Danganronpa 2: Goodbye Despair has these. And her breasts are, by self admission, over 50 feet wide.

Alternative Title(s): Mammary Physics, Jiggle Bone