Buddy Pokémon

Buddy Pokémon is a game mechanic that allows trainer to choose a one Pokémon from their collection that after walking certain distances will reward trainer with specific candy.
 * [[file:Button Buddy.png|link=|Buddy Pokémon|center|128x128px]]

The chosen Pokémon will appear next to its trainer's avatar on the profile screen. The Buddy will be able to be swapped out with another Pokémon at any time, 20 times per day. A Buddy cannot be assigned to a Gym nor transferred.

An elevated experience Buddy Adventure was introduced on December, 2019. Trainers can play with their Buddy and increase their Buddy Level.

Buddy Pokémon rewards
Each Pokémon that is assigned as Buddy has specific amount of kilometers to be walked after which trainer is rewarded with a candy. There are currently four different distances to be walked for a candy reward:
 * 1 kilometers - distance mostly for common Pokémon and their families,
 * 3 kilometers - distance for most of Pokémon and their families,
 * 5 kilometers - distance mostly for rare Pokémon and their families,
 * and 20 kilometers - distance for Legendary Pokémon.

Buddy Pokémon types
Every Pokémon has its specific type of Buddy Pokémon that defines where it is placed relatively to Trainer's avatar on the profile screen. There are five Buddy size types:
 * Medium - Buddy Pokémon is placed to the right of a trainer and it is smaller or equal to trainer's size,
 * Big - Buddy Pokémon is placed behind to the right of a trainer and it is bigger than trainer,
 * Shoulder - Buddy Pokémon is small enough that can be placed on trainer's right shoulder,
 * Baby - Buddy Pokémon is small enough to be held in hands of trainer,
 * and Flying - Buddy Pokémon flies, floats or hovers behind the trainer. Unlike four other types of Buddy Pokémon, this type doesn't define any range of Pokémon's size so Pokémon's size might differ. Most of Flying-type Pokémon have Flying as type of Buddy Pokémon as well, but not all of them.

After the Buddy Adventure update, flying Buddies differ from the other types of Buddy by flying over the map instead of running about.

Buddy Adventure
Buddy Adventure is a name of revamped Buddy Pokémon featured that expands initial feature with more mechanics and perks to it than just assigning buddy and finding candy.

Selecting and changing Buddy
To select a Pokémon as a Buddy Pokémon for the first time, Trainer needs to:
 * tap on Trainer’s portrait in the bottom left corner of the Map View,
 * in the Trainer's profile screen, tap the Buddy button to select a Buddy Pokémon.

After selecting, the first Buddy Pokémon, it cannot be removed but only swapped with another Pokémon.

Once Trainer selected a Pokémon as their Buddy, they can access their Buddy Profile screen in two ways:
 * by tapping Buddy’s portrait next to the Trainer’s portrait in the Map View.
 * by tapping onto Buddy displayed next to Trainer's avatar in the Trainer's profile screen.

To swap out Buddy Pokémon, Trainer needs to:
 * go to their Buddy Profile screen and tap the Swap Buddies button at the very bottom of the page.

Trainer can view Pokémon they have previously set as their Buddy by tapping the Buddy History button that is located below the Trainer level progress bar in the Trainer's profile screen. Trainer can also Swap Buddy Pokémon from the Buddy History page.

Trainers can only swap out their Buddy Pokémon 20 times per day.

Daily Activities and Affection Hearts
Engaging in Activities allows a temporary increase of Buddy Pokémon's mood and rewards Affection Hearts. The Today's Activities in the Buddy profile screen lists each way to interact with Buddy. Each time trainers engage in a listed activity with their buddy, the hearts will turn from gray to pink, indicating a heart was earned in that category.

When Buddy's Mood is Excited, the Affection Hearts that could be earned are doubled, except for the Bonus category. Extra earned Affection Hearts remain even if the Buddy is no longer excited.

Daily activities reset at midnight local time.

There are following types of Buddy Activities:
 * Buddy Walking.png Walk together
 * Buddy Pokémon will appear when hunger meter is full until it is fully depleted. One Affection Heart is earned for each 2 km walked with a Buddy walking on the map, up to three per day.


 * Buddy Feed.png Give your buddy a treat
 * Feeding Buddy fills up the hunger meter. One Affection Heart is earned when the hunger meter is filled, up to three per day.


 * Buddy Play.png Play together
 * Playing with Buddy in AR mode until the light flare and heart bubbles are seen from the buddy.


 * Buddy Battle.png Battle together
 * Using the Buddy in Battle Party when battling in Gyms, Raid Battles, Trainer Battles, or against Team GO Rocket.


 * Buddy Snapshot.png Take a snapshot
 * Taking a photo of the Buddy.


 * Buddy Visit.png Visit a new place
 * Visiting a Gym or a new PokéStop


 * Buddy Bonus.png Bonus
 * Bonus Heart is earned when Buddy gives a present or souvenir, or Trainers visit a PokéStop or Gym that Buddy wants to visit. This activity is only visible upon receiving an Affection Heart on this category.

Buddy levels and perks
Earning Affection hearts allows Trainer to progress toward improving their Buddy Level. Similarly to Friendship Levels, each Buddy Level unlocks special perks.

Unlike Buddy’s Mood, Buddy Levels do not decrease over time, much like Friendship Levels.

Adventuring Buddy
Buddy will appear on the Map when it is fed enough &ndash their hunger meter if full. While on the Map, buddy will earn Candy at a reduced walking distance.

Readable mood
Interacting with Buddy improves their mood. It decreases over time. Swapping buddies reset it back to Normal. Excited is the most positive mood, which doubles the Affection Hearts that could be earned and the candy walking distance is halved when excited.

Once Buddy achieves Good Buddy level, the Mood indicator appears on the Buddy Profile screen. If Buddy is on the map, Trainer can also tap their buddy to see its Mood.

Buddy gifts
When a Trainer is low on Gifts in their items bag, their Buddy will occasionally notify them next to the buddy icon with an exclamation point symbol. Once clicked on, the Trainer will receive from 1 to 5 gifts from the closest PokéStops from their current location.

These Gifts do not count toward the 100 daily limit for sending gifts to friends; this only applies to gifts received by spinning PokéStops.

Trainer will not receive Gifts from their Buddy if they already have 10 or more Gifts in their Items Bag. Unlike Buddy presents and Souvenirs, receiving Gifts from Buddy will not reward Affection hearts.

This feature was introduced due to COVID-19 pandemic to allow Trainers obtain Gifts without travelling to PokéStops if they do not have any near their residences.

Buddy presents
When Buddy Pokémon reaches Great Buddy level it can occasionally bring Trainer a present which are items inside of floral sack.

To open such present, Trainer has to open Buddy profile page and they will see a sack in front of their Buddy. Once they tap on it, the items will be received. These presents can contain items, such as Poké Balls, Potions, Berries and Revives.

Catch assist
Upon reaching the Great Buddy level, Buddy will at times help Trainer catch wild Pokémon. Specifically, if a thrown Poké Ball bounces off of wild Pokémon while it attacks, there is a chance that Buddy will partially appear in the Encounter screen and hit the deflected Poké Ball right back at the target.

Along with wild Pokémon, this may also occur while rescuing Shadow Pokémon after successful battle against Team GO Rocket members and even while catching defeated Raid Boss Pokémon, saving the trainer a Premier Ball.

Souvenirs
After achieving Ultra Buddy level, Buddy Pokémon can gift Trainer with Souvenirs. The kinds of Souvenirs Buddy will find vary depending on Trainer's local environment, and each Souvenir indicates the location where the Buddy found it. Receiving a Souvenir will grant an Affection heart in the “Bonus” category.

Locations
Buddy may draw Trainer's attention to a nearby PokéStop they find interesting. If Trainer visits the PokéStop and spin its Photo Disk while there is an indicator above the PokéStop, Trainer will earn bonus items and an Affection heart in the “Bonus” category.

CP Boost
After achieving Best Buddy level, Pokémon gains a CP Boost, making it more powerful in Raids, Gym Battles, Team GO Rocket, and Trainer Battles. The CP Boost will not be applied if the Pokémon is not currently set as Buddy.

Best Buddy Ribbon
Best Buddy wears a special ribbon indicating Trainer has reached its Best Buddy status.

Trivia

 * There is an Easter Egg about Buddy Pokémon. Initially when a Pikachu is assigned, it will show up on the ground beside the trainer. However, if a trainer walks a distance of 10km or more, the Pikachu will appear on top of the trainer's shoulder.
 * There is significant relation between Buddy distance for candy reward of specific Pokémon and what egg it hatches from, as:
 * Pokémon that hatch or originally hatched from 2-km Eggs have to walk 1 km for candy reward,
 * Pokémon from 5-km Eggs have to walk 3 km for candy reward,
 * Pokémon from 10-km Eggs have to walk 5 km for candy reward
 * and Legendary Pokémon that don't hatch from any egg have to walk 20 km for candy reward.
 * Shadow Pokémon or even fainted Pokémon can be assigned as Buddy Pokémon.
 * Since the introduction of Buddy Adventure, swapping Buddy Pokémon no longer resets progress toward earning Candy.
 * Best Buddy medal was introduced on March, 2020. It requires the Trainer to have 1, 10, and 100 Best Buddies.