Kat & Ana

"We're not just ninjas– we're also the stars of Mystical Ninja Elementary's upcoming school play!"

- Kat and Ana

Kat and Ana are major human characters in the WarioWare series. They are ninja twin sisters who attend Diamond City Kindergarten and adore nature, especially animals and flowers. Their house is located in a park in Diamond City. Their names are a pun on the word "", a type of Japanese samurai sword. Kat and Ana debut in WarioWare, Inc.: Mega Microgame$! as two of Wario's friends who help him produce microgames.

Background
Kat and Ana share information about themselves and their family in their diary at the official WarioWare, Inc.: Mega Microgame$ Japanese website. They come from a family of ninjas, named Iga Clan, which greatly inspires them to practice ninjutsu since childhood and become ninjas themselves when they grow up. Kat and Ana's father left his parents' house when he was a kindergartner to seclude himself in the mountains and develop his self-discipline. Kat and Ana planned to do the same, but abandoned the idea after playing a game of living by themselves for a while. However, Kat still expresses her resolve to go through this training.

WarioWare, Inc.: Mega Microgame$!
Kat and Ana are introduced in the opening cutscene of WarioWare, Inc.: Mega Microgame$!, in which Wario invites them and other friends of his to join his company WarioWare, Inc. as game developers.

In Kat and Ana's story, a villainous skeleton spirit named Boneheads appears over the Castle in Diamond City at night. He takes possession of the prince or princess who sleeps under the roof. Ana appears along with her crew consisting of five other ninjas. They attack the spirit, but he easily defeats all of them with his two lengthy swords. Only she can still affect something, but she fails as well. Because Ana hasn't a chance against Boneheads, she assigns her animal companion, Don the Sparrow to carry a letter with the message "Ninja girl! Save me!" to her sister Kat to call for help. After he flies off, Boneheads also captures Ana who is captivated with a rope.

Kat resides with Paw the Dog at an unknown place in which seems to be far away from Diamond City. When Don the Sparrow arrives, he drops the letter in front of her. Shortly after, Kat reads the message and heads for Diamond City with her faithful canine companion. On their way, they came across various Japanese landscapes.

When Kat and Paw the Dog arrive, they already face Boneheads at the entrance of the Castle who floats up to the roof again. Kat and Paw the Dog make it through the many floors of the Castle and eventually reach the roof where Boneheads awaits them. Kat battles him, but she couldn't vanquish him with her casual sword, so Paw the Dog joins the fight and morphs into a gargantuan blade. With the help of Paw, Kat can finally defeat Boneheads after some effective slices. He degrades bone by bone. The prince is delivered from Boneheads' influence and Kat rescues Ana by cutting the rope with that she is captivated. At the end of the adventure, Kat, Ana, and their two animal partners along with the princess/prince being gleeful can be seen in front of the Castle.

Kat and Ana's microgames are themed after nature, and thus all of them feature animals or plant life in some way. The song Four Seasons plays throughout their stage.

In an unlockable minigame called Jump Forever, Kat and Ana swing the rope that Wario has to jump. In the unlockable minigame taken from Mario Paint, Fly Swatter, the Bob-omb appearing in the congratulations sequence has been replaced by Kat.

WarioWare, Inc.: Mega Party Game$!
In WarioWare, Inc.: Mega Party Game$!, Kat and Ana perform in a television show called Super Show after 9-Volt's entrance. Under the headline "Karate", they show off their ninja techniques. However, it isn't known what occurs next because Wario's television set bursts.

Kat and Ana are two of the ten selectable characters in the multiplayer games.

WarioWare: Twisted!
In WarioWare: Twisted!, Kat and Ana go on a field trip with their kindergarten class on the Diamond Knoll. Their pets, Shadow the Dog and Shuriken the Falcon come along with Kat and Ana. The teacher instructs the children not to bunk. During the trip, Ana discovers a beautiful flower. While Kat takes a stroll, she and her two animal friends pause at the flower. Ana decides to show the flower to Kat and chases after her. However, Kat damages a beehive with a stick when she arrives. The bees get furious for being disturbed, so Kat and Ana sprint away from the swarm. They abscond into a wooden cabin and rest there for a moment.

However, Kat and Ana aren't alone. They encounter the Diamond Troll. He immediately prepares his attack, so Kat and Ana quickly change to their ninja uniforms and attack him with their swords. Then, Kat and Ana charge their blades and shoot out a sword beam at the Diamond Troll. Shortly before they can attack, Shadow the Dog and Shuriken the Falcon crash right into the cabin and hit the ceiling. Then, they plummet into the Diamond Troll and all three are knocked out. Kat and Ana are speechless for a moment.

Following these events, Kat and Ana decide to return back home, but after they open the door of the cabin, the swarm of bees reappear. The two ninja sisters and their animal pals escape from the swarm in front of the sunset.

In Wario-Man's story, the alien Orbulon gives Kat, Ana, Mona, 9-Volt, and 18-Volt a flight in his new UFO. All five humans sit on seats behind Orbulon.

WarioWare: Touched!
Ana and Shadow the Dog stay in their house in WarioWare: Touched! Ana wants to eat bananas, so she opens the door to the room where the bananas should lie on a dish. She is shocked when she notices that the bananas are gone, and hectically searches the room. During this, Shadow the Dog notices animal footprints in the house. He informs Ana of the tracks by barking. She now also notices the tracks and sets off to find the banana thief. Before heading out, Ana writes a note for Kat so that she can know where to find her. Ana and Shadow the Dog dash out the door to chase after the culprit. Kat reads the note and catches up to her to retrieve the stolen bananas with Shuriken the Falcon.

Kat and Ana eventually capture the thief, who turns out to be a small monkey. They are initially angered, but the monkey quickly endears them, and they name him Numchuck. Kat and Ana cheerfully lift the monkey up and down and the thievery is quickly forgotten.

WarioWare: Smooth Moves
In WarioWare: Smooth Moves, the gargantuan, red Elephant Ogre comes to Diamond Dojo and stands in front of it at night. The concerned Sensei in the Dojo faces the monstrous being who suddenly lets out a piercing shriek. Quickly, Kat and Ana come to the Dojo's rescue. Ana gets inside the Dojo to reach the Sensei. When she arrives, she notices the Little Ogre bugging the Sensei and yanking his hair. Outside, Kat battles face to face with the Elephant Ogre. She activates her clone powers and five duplicates appear simultaneously, in which the clones immediately attack the giant with their swords. The Elephant Ogre's club and Kat's sword press each other, but then the Little Ogre shouts to stop the fight.

It turns out that the Elephant Ogre has just been searching for the Little Ogre, probably his child. With the Little Ogre on his hand, the Elephant Ogre peaceably leaves during the sunrise. Kat waves to say goodbye, but she suddenly notices that the actual Little Ogre is still there. The silhouette on the Elephant Ogre's hand is actually Ana. She desperately waves with her arms and cries.

Kat and Ana also work as editors of Wario's one-shot newspaper, "The Weekly Wario". They write about rumors involving the Form Baton.

WarioWare: Snapped!
In WarioWare: Snapped!, Kat and Ana run the newly opened Wario Park along with Wario, Mona, and Jimmy T. All of their microgames in this game require two players. Completing their microgames make them remark on how close the players are, just like them.

WarioWare: D.I.Y. Showcase
In WarioWare: D.I.Y. Showcase, Kat and Ana have their very own stage called "Kat and Ana's Sky Patrol". In this stage, they jump off a cliff first only to fly above the sky using yellow capes in a fashion similar to Cape Mario and Cape Luigi. They are accompanied by birds (to denote the player's 4 lives for the stage).

Game & Wario
Kat and Ana appear in Game & Wario, where they host the Patchwork minigame.

Kat also appears as depicted on a bowling pin in the Bowling minigame with the other characters.

WarioWare Gold
Kat and Ana first appear in WarioWare Gold accepting Wario's offer to make games for him for the Wario Bowl, in which they host the second stage of the Touch League with a That's Life theme.

In their own story, the twins arrive at Diamond City Castle to find their teacher for a ninja test in hopes of getting their ninja learners permits. They encounter Ms. Munchly who they believe to be their teacher, who tells them that their test is to eat everything she dishes out to them, much to the twin's excitement. After eating numerous amounts of sushi, it is revealed that they completed the Gourmet Master test; their ninja test was right next door and their real teacher, Ninja Steve, was in the bathroom during their feast. Though full from eating, Kat and Ana join Steve to complete their real test.

They are later seen dancing at Club Joe with Jimmy, Mona, Dr. Crygor, Mike, Penny, Young Cricket, Master Mantis, and Fronk. They bring a large amount of food that attracts several customers to the club.

At the end of the story, Kat and Ana are among the group who demand their part of the money Wario made from the Wario Bowl. After Wario accidentally lets the briefcase with the tournament money fall off from his hands, Kat becomes disappointed to find out that the money Wario had with him was actually very little, with Ana deducing that Wario had probably spent most of it beforehand. They later gladly split the rest of the money with their friends.

Unlike in previous games, Kat and Ana have brown eyes instead of blue.

WarioWare: Get It Together!
Kat and Ana appear in WarioWare: Get It Together! as microgame hosts and as playable characters. If they are used in co-op mode, player 1 plays as Kat and player 2 plays as Ana; in single-player, only Kat is playable. As playable characters, they are continuously jumping and have the ability to throw shurikens; Kat always throws hers to the right, while Ana always throws hers to the left.

Super Smash Bros. Brawl
In Super Smash Bros. Brawl, Kat and Ana appear as Stickers and together on a trophy. In addition, they make their first 3D appearance as Assist Trophy characters that soar across the stage and slash players with their swords.

Super Smash Bros. for Nintendo 3DS / Wii U
Kat and Ana return as an Assist Trophy and in Super Smash Bros. for Nintendo 3DS / Wii U. Their models have been updated to reflect the pair's Game & Wario design. They also have a trophy, like in Super Smash Bros. Brawl.

Super Smash Bros. Ultimate
Kat and Ana appear together in Super Smash Bros. Ultimate as a Master Spirit. In the game's adventure mode, World of Light, they own a dojo in the Light Realm, where they teach Spirits the Ninja Style. This style gives a major increase to movement speed, falling speed, and the power of grabs, throws and attacks with items, but decreases the power of regular attacks and special moves, and also decreases defense and weight.

Rhythm Heaven Megamix
Kat and Ana make an appearance in the Wario... Where? challenge set of Rhythm Heaven Megamix. The ninja twins appear in the set's version of, with the player controlling them as they catch oranges and pineapples bouncing down some steps towards them.

Tetris 99
From September 17 to September 21,  ran the 24th Maximus Cup which featured a WarioWare: Get It Together! theme, where Kat is represented by the "T" tetromino.

Personality and abilities
Kat and Ana are often depicted of possessing surprising abilities; they have been seen cloning themselves, jumping higher than the average human can, and defeating enemies more than twice their size when working as a team. Many of these powers are classic ninja techniques. Despite this, Kat and Ana are also displayed as quite naïve. While Kat is usually portrayed as being more focused and mature, in WarioWare: Twisted! she disturbs a nest of bees without thinking things through. Kat acts bossy which sometimes results in making Ana cry, but she cares deeply for her. Ana is quieter and more cautious than her sister. Kat and Ana are said to love especially animals and flowers, respectively. In WarioWare Gold, they are shown to have big appetites and enjoy eating large amounts of food.

The sisters are good friends with 9-Volt, as revealed in their diary. It is unknown how they became friends with Wario.

Microgames
Kat and Ana come with their own set of microgames in all games of the WarioWare series.

In WarioWare, Inc.: Mega Microgame$!, Kat and Ana created microgames of the Nature genre. All games involve animals or plants. WarioWare, Inc.: Mega Party Game$! also features Kat and Ana's nature microgames, plus a multiplayer game made by them, Wobbly Bobbly, which involves animals as well, namely tortoises.

In WarioWare: Twisted!, Kat and Ana's microgames involve a particular style of gameplay rather than a specific visual theme. In this game, their set of microgames is called Tap Out and requires to press only.

In WarioWare: Touched!, the name of Kat and Ana's set of microgames is Ninja Scribble and involves scribbling and drawing with.

In WarioWare: Smooth Moves, Kat and Ana's set of microgames involves the forms The Remote Control, The Sketch Artist, The Chauffeur, and The Samurai.

Kat and Ana's five microgames in WarioWare: Snapped! require two players to play rather than one. After the end of their stage, photos of the two players with goofy decorations are shown. In Jimmy T's stage, a comic strip of them can be shown. In this comic, they have a fighting practice.

In WarioWare: D.I.Y. Showcase, Kat and Ana return to their original role and host a new set of Nature themed microgames again. Unlike the original WarioWare which featured microgames about animals and flowers, the microgames in this set for the game are limited to only animals.

In WarioWare Gold, Kat and Ana host the second stage of the Touch League, of the That's Life genre, which includes regular day-to-day activities. All their microgames involve the use of touch screen controls.

In WarioWare: Get It Together!, Kat and Ana return to hosting Nature-themed microgames.

Profile page from the WarioWare, Inc.: Mega Microgame$! manual
"We're Kat & Ana! Yep, we're cute, we're kindergartners, and we're ninjas! We like plants and animals so much that we included them in our games. Apparently, we're graduates of Wario's school of kindergarten–at least, that's what the graffiti on the wall said! If I remember correctly, the teachers weren't too happy about that..."

Kat

 * Occupation: Kindergartener
 * Special Skill: Throwing Stars
 * Favorite Thing: Animals
 * Bio: Descendent of the Iga ninja clan, Kat is the oldest of twin sisters. She goes to Diamond Kindergarten. Kat is bossy and a bit of a bully, but she loves her pet turtles.

Ana

 * Occupation: Kindergartener
 * Special Skill: Weapon "Makibishi"
 * Favorite Thing: Flowers
 * Bio: Kat's younger sister, Ana, is very quiet. Kat sometimes makes Ana cry, but Kat is always there when Ana is in danger. Ana loves all living things, especially flowers.

Website bio from WarioWare: Touched!
''They're ninjas, yes, but also kindergartners. So it's no surprise that playtime for this katana-wielding, puppy-loving duo involves lots and lots of scribbling. Just try to stay inside the lines.''

Kat
-Ana's older twin sister -Kindergarten student -Loves animals, especially turtles -Cuts her own bangs

Ana
-Kat's younger twin sister -Kindergarten student -Loves flowers, especially cosmos -Won't let Kat touch her bangs

Kat

 * Rank C – Kat is a ninja who's still in nursery school. Though Ana's twin, Kat is a little older and full of energy.
 * Rank B – Kat is fairly rough-and-tumble on the playground. She never misses a game of tag. No one can catch her!
 * Rank A – Kat is skilled in katana techniques and those for shuriken too. Bad guys don't stand a chance against her.

Ana

 * Rank C – Ana is a ninja who's still in nursery school. Though Kat's twin, Ana is a bit younger and very watchful.
 * Rank B – Ana likes to play with animals at school. Some like Ana so much, they follow her all the way home.
 * Rank A – Ana is very skilled in the techniques of transformation. She can even make herself look like a flower.

European website bio

 * "These constantly jumping ninja twins can fire off a barrage of shuriken on command, with Kat throwing to the right and Ana to the left."

Character description

 * "These kindergartners are not only twins...they're ninjas too! Kat is a tiny bit older than Ana, obviously."

Kat

 * "She may be in kindergarten, but she's also a ninja! Fearless and strong willed, Kat loves to lead her twin sister, Ana, on all sorts of ninja adventures."

Ana

 * "Ana is the quieter, ever-so-slightly younger half of the Kat & Ana ninja duo. But this kindergartener is always happy to follow her twin sis, Kat, into the fray."

Super Smash Bros. for Nintendo 3DS / Wii U trophy
Blue indicates exclusive to the Wii U version.

Trivia

 * The music in Kat and Ana's epilogue in WarioWare, Inc.: Mega Microgame$! is the same as during the level select in the Golden Pyramid in Wario Land 4.
 * The girl appearing in Rhythm Heaven Fever's game "Kung Fu Ball" bears a resemblance to Ana while the boy bears a resemblance to Young Cricket.
 * Kat and Ana are the only characters in WarioWare: Get It Together! to use a different pose than their default in the Break Room: they stand straight and face the screen instead of posing off to one side.