Players can earn money and powerups by collecting Pokemon eggs.
The game has become popular in recent years with over 25 million players playing each day, according to game developer Nintendo.
The game offers trainers a variety of different types of Pokémon that can be used to train and evolve Pokemon.
Players can also find rarer Pokemon, which can be exchanged for items such as coins or items that give more experience.
Nintendo said Pokemon Trainer Classes is a great way to introduce new people to the Pokémon franchise.
“With Pokémon Trainer classes, you can go online and play as any of the different types and unlock a variety with the Pokémon you catch and evolve, which are all unique and special to each trainer class,” a Nintendo representative said in a statement.
“Whether you’re just getting started in the series, or a seasoned player who has been playing for years, we think Pokemon Trainer classes is the perfect way to start.”
Nintendo has had a long-standing relationship with Pokemon trainers, and the game has been a mainstay of the Nintendo eShop since the game launched in 2014.
It has been available on PC, PlayStation 3, Xbox 360 and Nintendo Switch since 2017.