This is how StreetPass works.
StreetPass is a feature present in every Nintendo 3DS system that allows users to exchange data from games & applications that the two own. It is on regardless of whether the 3DS is in sleep mode or not (though the system itself must be on), and automatically acts when another 3DS user walks within the console's range.
With it, players can acquire new features in games that they own (even if the game's card is not presently in the 3DS card slot) and obtain the Miis of 3DS users that walk past them. If one wishes, they can turn the feature off completely or assign the games that they want it to work with. Several games have made use of this function in unique ways. Other content that can be transmitted include puzzle piece for Puzzle Swap, messages from the user (in addition to their favorite game on the system), and their most played song with Nintendo 3DS Sound.
The LED notifier of the upper right side of the Nintendo 3DS (when closed) alerts players when data has been exchanged with another user whether it be through StreetPass or SpotPass with a solid green or blue LED color respectively. The LED notifier will turn off after opening the Nintendo 3DS.
List of games
Note: This list is not complete.
The following are a list of games that use StreetPass.
|Game||Max # at one time||Function|
|Aero Porter||?||Players exchange self-designed planes and earn a small amount of money.|
|Animal Crossing: New Leaf||20||Exchange house designs with other players, and they will then appear in the “Model Homes” section of your town. You can order regular furniture from model homes at a price higher than its normal catalog price.|
|Asphalt 3D||?||Allows to exchange ghost data and unlock certain items.|
|Bravely Default||10||Players can summon other players’ characters into battle. Each StreetPass also adds to the player's village population, which is used to unlock special items over time.|
|Bravely Second: End Layer||?||StreetPass can be used to increase the population of a ruined moon base to assist in rebuilding it. Other characters and their abilities can be summoned during battles for extra assistance.|
|Brain Age: Concentration Training||10||Players exchange records, and win points for beating other players’ scores. |
|Combat of Giants 3D||?||Unknown|
|Crush 3D||?||Swap in-game items.|
|Dead or Alive Dimensions||8||Street Pass Battles against random players. Difficulty of opponent is calculated by the number of battles won vs lost.|
|Devil Summoner: Soul Hackers||20||Gain 100 D-Souls per StreetPass, used to give to Nemechi. (NOTE: Although you can have a maximum of 20 StreetPasses banked for this game, Nemechi cannot gain more than 999 D-Souls every time they're cashed in, so accruing more than 10 StreetPasses is completely useless.)|
|Devil Survivor 2: Record Breaker||10||Every StreetPassed user leaves an entry showing their player's name and Compendium completion. Entries are deleted when activated, increasing one random stat on a random demon (in the party or reserve) by 1.|
|Disney Magical World||10||Other players can also visit your cafe and give you collectable card.|
|Driver: Renegade||?||Exchange ghost data.|
|Etrian Mystery Dungeon||?||Players can share their Guild Card with others. Guild Cards can also be shared using a QR code.|
|Etrian Odyssey IV: Legends of the Titan||99||Players exchange clues to in-game treasures, which give pretty good items when found.|
|Etrian Odyssey Untold: The Millennium Girl||?||Players can share their Guild Card with others.|
|Etrian Odyssey Untold 2: The Fafnir Knight||?||Players can share their Guild Card with others.|
|Fantasy Life||10||You can view other players profiles and there character can also visit you and if you level up friendship points with them they can give you a gift.|
|Fire Emblem: Awakening||50||Players can exchange and recruit others’ Avatar character either by paying for him/her or by battling and defeating their entire team. As an alternative you can choose to shop and buy as much of the team’s equipment as you want, with the exception of special items. |
|Fire Emblem Fates||50||Players Avatar will appears in a small localized area in the the "My Castle" where you can talk to them to visit their castle to shop, get resources and even battle. |
|Freakyforms: Your Creations, Alive! and Freakyforms Deluxe: Your Creations, Alive!||20||
Exchanges up to three creations and one picture. Note that creatures with Freakyforms Deluxe-specific parts exchanged with a regular Freakyforms game will have an icon indicating they can only be viewed and not played with.
|Heroes of Ruin||?||Players can swap groups of items that other players sold.|
|Hyrule Warriors Legends||99||Sends StreetPass Links to other players' Adventure Mode maps. Battles on map tiles with these Links are more difficult, but give better rewards, especially if the Link also came from someone on your Friends List.|
|Kersploosh!||?||Sends the players’ high score for each level.|
|Kid Icarus: Uprising||50||Players exchange weapon gems, which can be used to convert or fuse into weapons by paying hearts. Weapon gems can also be broken down to gain a small number of hearts. Each gem also contains a small amount of info about each player, such as their name and completion percentage.|
|Kirby: Triple Deluxe||?||Players can send each other keychains and prizes in story mode and record times for The Arena for players to try and best.|
|Kingdom Hearts 3D: Dream Drop Distance||?||Players can set up and distribute portals that can either assist players or challenge them.|
|6||Players can share their composed songs with each other.|
|The Legend of Zelda: A Link Between Worlds||20||Battle against others’ play file in the form of Shadow Links, which earn you rupees for winning. Game keeps record of a list of StreetPass battle achievements.|
|?||This game has the player automatically fighting other players via StreetPass. After this occurs users can see how many games they’ve won or lost.|
|LEGO Star Wars III: The Clone Wars||?||Used to unlock new characters and items.|
|Mario Kart 7||10||Used to collect ghost data from other players and share information of the communities they are.|
|Mario Tennis Open||?||Two matches with the collected Mii, one normal and one Ring Shot, are made available. Afterwards, the Mii remains visible in the game.|
|Monster Hunter 3 Ultimate||?||Let's you obtain guild cards from your fellow hunters.|
|Moshi Monsters: Katsuma Unleashed||25||Lets you obtain secret codes to unlock Robot Moshling items online. You can also earn Rox and Moshipedia entries for your game.|
|New Super Mario Bros. 2||10||Exchanges the players’ saved Coin Rush.|
|Nintendogs + Cats||10||Users who walk past other Nintendogs + Cats owners will be able to meet the other player’s Mii and dog in the game the next time they play the title and have the two dogs exchange gifts.|
|Persona Q: Shadows of the Labyrinth||?||Players can share their Personas (and register other players' Personas in the Compendium). Personas can also be shared online as QR codes.|
|Pokémon Omega Ruby and Alpha Sapphire||30||Registers the other player's Secret Base on your saves.|
|Pokémon Mystery Dungeon: Gates to Infinity||?||Sends Reviver Seeds that players have deposited in their mailbox.|
|Pokémon Battle Trozei||?||Exchange player cards with info about Pokémon caught, high scores, etc.|
|Pokémon Rumble Blast||?||The other player challenges you with one of his Pokémon toys as a boss battle and if you beat it you get that Pokémon toy. Also you get one point that goes toward unlocking special legendary Pokémon.|
|Pokémon Rumble World||10||Exchange player images and info about Pokémon caught, etc. Gradually unlock diamonds based on number of StreetPasses.|
|Pokémon Shuffle||10||Exchange player cards with info about Pokémon caught, high scores, etc. Get bonus hearts after a certain number of StreetPasses, etc.|
|Pokémon X and Y||99||Collect Poké Miles - a type of currency that can be used to purchase items for the game or to play attractions on Global Link website.|
|Pro Evolution Soccer||?||Automatic data. Players who have played a lot have a better chance of winning.|
|Professor Layton and the Miracle Mask||?||Stats/puzzle exchange.|
|Resident Evil: Revelations||10||StreetPass gives items for campaign mode and missions for raid mode.|
|Ridge Racer 3D||8||Ghost data is exchanged automatically from one system to the next. The next time the player boots up the system they are allowed to play against the other user’s ghost.|
|Rhythm Thief & the Emperor's Treasure||?||
Players challenge each other’s high scores in the mini game of their choice.
|Rusty's Real Deal Baseball||10||
Players exchange high scores from the high-score derbies, as well as info on which mini-games they have purchased.
|Samurai Warriors: Chronicles||6||Automated battles, similar to Super Street Fighter IV 3D Edition and LEGO Pirates of the Caribbean.|
|Scribblenauts Unlimited||?||Lets you exchange level solutions. Collect data on other players. Gives hints for beating puzzles.|
|Shin Megami Tensei IV||12||The first time you Streetpass, you get 40 app points if you also have either SMT Devil Summoner: Soul Hackers or Etrian Odyssey IV. You can also either gain a rare item or automatically fuse a new demon. In addition, the players you’ve Streetpassed can be called upon to perform a group attack during once within your game. A single demon can also be sent out through StreetPass, attached to a profile card; the demon will gain stats and give you items based on how many StreetPasses you've collected.|
|Sonic Generations||99||Profile cards are exchanged with other Generations players, which allows you to unlock one mission for no cost per StreetPass exchange.|
|Style Savvy: Trendsetters||10||Profile cards are exchanged. The cards include a short biography and a code to the player’s online shop.|
|Super Smash Bros 3DS||12||Street Smash Mini Game. Win currency that can be used to buy trophies.|
|Super Street Fighter IV 3D Edition||10||A battle is automatically commenced between the two users’ figurines obtained through Story Mode that grants trophies to the winner. Note that the battle is done by a computer.|
|Super Mario 3D Land||3||Allows you to gather Mystery Boxes for items or Star Coins & Toad houses reappear. It also collects time data from other users so you can race against them.|
|Theatrhythm Final Fantasy||24||Allows players to exchange ProfiCards. Attached to the cards are Dark Notes, which contains two songs and various monsters, and item drops.|
|Theatrhythm Final Fantasy: Curtain Call||24||Allows players to exchange ProfiCards. Attached to the cards are Quest Medley maps, which contain a number of songs, monsters and item drops.|
|Tomodachi Life||10||Allows players to receive items from other islands. Also to send explorers to other islands.|
|Winning Eleven 3D Soccer||?||Lets you collect golf balls for soccer matches.|
|Xenoblade Chronicles 3D||99||Each StreetPass can be exchanged for two tokens. Tokens are used to buy 3D models and music tracks for the Collection.|
Nintendo developed two games that come preloaded onto every 3DS system that showcase the StreetPass’ capabilities of the handheld. These games, called Find Mii and Puzzle Swap, revolve entirely around StreetPass. In Find Mii, users attempt to rescue a king trapped in a castle by enlisting new party members. This can only be done by passing by other 3DS owners and acquiring their Miis (new party members can also be acquired by using Play Coins, and they appear as Mii Dogs or Cats, depending upon the user’s selected favorite). In Puzzle Swap, players gain puzzle pieces by passing other users on the street. Once a puzzle is complete several things may happen, such as the image turning into a short movie or a trophy that can be manually maneuvered (similar to Super Smash Bros. Melee and Brawl, and as shown in the E3 2010 demostration of the Nintendo 3DS). Several of the images are of classic Nintendo characters such as Mario, Samus, Link, Kirby and the Pikmin, as well as secondary characters from those video game series such as Bowser, Luigi and Yoshi. Each 3DS user is assigned a default puzzle, with other puzzles available only through StreetPass swaps. Users who do not use StreetPass can acquire puzzle pieces to an already started puzzle by using Play Coins. You can also purchase Mii Force, Flower Town, Warrior's Way, and Monster Manor in the game by going to the bunny of the game you want to purchase. You can purchase them individually, or save roughly $5 by purchasing them in a bundle.
A couple of Nintendo DS video games featured a similar feature. Nintendogs' Bark Mode and Dragon Quest IX: Sentinels of the Starry Skies' Tag Mode both function in a similar manner yet require that the game's cartridge be placed in the system and the mode manually activated. According to Nintendo 3DS producer Hideki Konno, the feature was implemented in the Nintendo 3DS primarily because of the overwhelming success of Dragon Quest IX, particularly in Japan. Konno also revealed that his son was somewhat bored with the similar feature included in the original Nintendogs, emphasizing the importance that Dragon Quest had on the inclusion of StreetPass in the Nintendo 3DS.
The Unknown Dungeon in Pokémon Mystery Dungeon: Blue Rescue Team permited players to put the Nintendo DS to Sleep Mode while keeping the Wireless Swich on. Players who passed other players of this game that are in the Unknown Dungeon in this fashion can send their Pokémon to the Unknown Dungeons of other players and bring back items.
The World Ends with You has a Mingle mode that levelled up the pins of the player if the player passed other users of the Nintendo DS with the Wirless Swich on, whether the player is playing The World Ends With You or not.