In addition to being able to send Pokemon from Pokemon GO to Pokemon: Let's Go, Eevee and being allowed to store and capture them, players can also unlock a certain Mini Game within GO Park. Said mini game can be accessed in the Play Yard within GO Park simply by transferring twenty-five Pokemon of the same species from Pokemon GO to Pokemon: Let's Go, Eevee.
This special Mini Game will see players having to go through GO Park in hopes of rounding up these twenty-five specific Pokemon and safely bringing them to the exit, all while trying to avoid various obstacles in the form of other Pokemon. These other Pokemon - including Diglett, Golem and Sandshrew - will do their best to cause your Pokemon to scatter, thus making things all the more difficult. But should you manage to successfully get all your Pokemon to the Exit Gate, you will be rewarded with various types of Candy that will allow you to boost your Pokemon's Stats.