The player awakens here after falling down a hole created by Mew. A Chatot greets them and offers to guide them to the PokéPark. He then teaches the player the various controls and mechanics of the game and teaches the player about the Skill games. At the end of the tutorial he gives the player the PokéPark Pad which serves as the menu in the pause screen allowing the player to check Pikachu's statistics, their friends, and save their progress.
At the entrance, the player meets a Buneary who is also going to visit the park but a Snorlax has fallen asleep and is blocking the entrance. She then requests the player use Thunderbolt to awaken the Snorlax long enough for him to move, inevitably teaching the player how to execute a Thunderbolt. Buneary then thanks the player and makes her way into the PokéPark.
Spoilers end here.
This is a list of all the Pokémon that can be befriended in the PokéPark entrance.