A game that is, unwanted once

The idea of ​​this game is fun, but some challenges are average. At this price, you can create your own game with its own missions that can be adapted to the types of participants (families, friends, generational mix ...).
Because once you are there to play, it has already made the rounds of cards, so not very profitable.
Otherwise, I miss some of the rules of the game ... How to have the missing card? ... The game was nevertheless well as new packaged in plastic film.