The game electronics are indications where there are magic doors, they are opened when there is a character on either side of the door has been opened 1,2 or 3 doors (depending on the difficulty level), Hubi and has awakened to be caught, and this can one stop and get hints where Hubi is.
The game is a mix of "Who was it" and "Where's it", but is aimed at slightly younger players The age from 5 is fine, in the first few games, parents need to play, but then the kids can do it alone, to catch the ghost.
The playing time is 20-30 minutes and usually we manage to grab Pebble and our children have played it very often and only once at level 3 could escape the specter.
Even some older children and adults have fun in the game, even if it is not "Who was it" comes close to the ingenious, it is definitely a recommended purchase.