But if you really want to take in the world of Rime City, and the other locales that Pokemon: Detective Pikachu will travel to, it helps to know if that little pink creature in the coffee shop will write on your face, should you be lulled to sleep. Pop quiz, hot shot: that creature is a Jigglypuff, and it will draw on your face if you fall asleep to its song. If you knew that, you’re pretty well off, but if you didn’t, you might want to hit the books a couple more times before setting off.
Article source: https://www.cinemablend.com/news/2470111/new-detective-pikachu-video-is-a-great-primer-if-you-dont-know-anything-about-pokemon