It could say on the game though except instead of saying what it is it shows a black badge shape with a ? in the center. The description could say "This quest is a secret! Unlock it to see it!" When you unlock it, it shows it to you.
not to9 forget that other players can not see them so they have to ask other users how they got that secret medal. but wait, they can not see weither the others have got them or not so they can not ask. the only way to spread that is by telling others. also, they should be made so that we even do not know which games have a secret quest so we have to try different games.
