Pokémon Strange Journeys

Pokémon Strange Journeys is a Japanese-American-British animated television series produced by Satsuki Film Company and distributed by 1happycats Productions. The series first aired on January 26, 2015, and ended on August 11, 2017.

Film series
All three movies in the series appear to be a crossover of some sort.

The Rise of Dr. Eggman
The first movie was released on August 7, 2015, just after the first season ended. It involves Dr. Eggman, having captured Ash's friends after they left, planning to take over the entire Pokémon universe, and it's up to Ash and his friends to stop him.

Adventures in Minecraft
The second movie was released on June 17, 2016, after the second season ended. It is a crossover with Minecraft.

Mystery of the Missing Kid
The third and final movie was released on May 30, 2017, after the fourth season ended. It is a crossover with My Neighbor Totoro.

Video games
All the games listed below have been released on Windows, macOS and Nintendo Switch, with the first five of these games also being released on Wii U and Nintendo 3DS.

Pokémon Strange Journeys: Save Our Dawn!!
This game was based on an episode of the first season and released on April 20, 2015. It was initially titled Pokémon Strange Journeys, but later gained a subtitle when it was released in compilations. Later standalone releases followed suit.

Pokémon Strange Journeys: The Rise of Dr. Eggman
This game was based on the movie of the same name and was released on September 11, 2015.

PSJ Network
This game was based on the somewhat infamous Pokémon Channel and released on February 14, 2016.

Pokémon Strange Journeys: Adventures in Minecraft
This game was based on the movie of the same name.

Pokémon Strange Journeys: Make Room for Mash
This game was released on July 18, 2016. This is the first game to feature Mash.

Pokémon Strange Journeys: The Ghibli Saga
This game was based on various episodes of the fourth season and released in 2017.

Pokémon Strange Journeys: Mystery of the Missing Kid
This game was based on the movie of the same name and was released in 2017.

Pokémon Strange Journeys: Doomsday
This game was based on various episodes of the fifth season and released in 2017.

Reception
The show received mixed-to-negative reviews, mostly due to the incredibly juvenile writing and personalities of the characters (Misty and May in the first season, and later Mash, being some of the worst offenders), as well as due to it barely focusing on any Pokémon, along with the many blatant references and severe padding. Some even went as far as to call it "the Teen Titans GO! of the Pokémon franchise".

Trivia

 * This is Satsuki Film Company's first collaboration with 1happycats Productions. who would end up purchasing the former in 2018.
 * It was rumored that the show was rejected by most of the companies affiliated with the official Pokémon anime, and Satsuki Film Company only accepted in hopes of attempting to get into the TV show industry.