Wait at least 2-3 seconds for the transitions to fully occur. When the space button is asked to be pressed, press it and hold till something happens. If you didn't catch something(information), or for some reason, things got cut off, click the see inside button, go to the stages and go to the backdrops tab. Here you can scroll and click through to see the information(most of it will be on the Pokedex ones) SOME SCREENS MAY GLITCH AND CUT OFF SOME INFORMATION. Check the guide provided above to access info manually.