Pika Prompts are small clips of when Pikachu talks to Tim Goodman about a certain subject matter. These Little cutscenes provide players with a better sense of Pikachu's character, as well more context to the Case at hand and the Main Storyline as a whole. Some Pika Prompts have certain location and chapter requirements, some will even require for certain characters or Pokemon to be near Pikachu. You will receive a notification whenever you have a Pika Prompt to view, but you can also activate them by pressing the Pikachu Icon on the lower screen of your system.
After unlocking a Pika Prompt, you can rewatch it at any given time by accessing the Pika Prompt Menu on the Title Screen. On top of this, you can even run through the clips in aorder or even shuffle them at your choosing. You will even have the option of selecting certain Pika Prompts as your favorites in order to include them on your Favorites List. Unfortunately, should you miss a Pika Prompt during a chapter, you will have to replay the chapter in order to activate it and have it added to your collection. That, or purchase and use the Detective Pikachu Amiibo.