Efteling have launched a mobile game called No-one Knows.
The idea is that you can use it to kill some time whilst standing in queues in the park, but it’s fun to play whenever or wherever!
Simply hold the phone against your forehead and the other person has to describe the character for you to guess. You can shake your phone to bring up the next card/character.
It’s kinda fun, and a good idea for those times when the lines for attractions do get a bit too long.