Game is played in teams. At least 2 teams (4 players) is needed to play Alias. They randomly select team who starts and in the team they randomly decide who start guessing and who explaining. The other team gives the one number or symbol and the turn around the hourglass. Then the one teammate start explaining without looking at the card before the hourglass have been turned over. Then the explainer must not use the word he/she is trying to explain in any form and in other language if that is not said before. Every word they missed is minus one point and every word they got (exactly like on the card) is plus one point. And the rest of the game is played like that. They explain the symbol they are standing on. Quite easy.
Now the lighter tiles (pinned tiles in new version). Once one team land on the tile, their next round is opened round.
That mean that the one who has to explain, will take six cards without looking at the card and start explaining them one by one WITHOUT time limit. And ALL players can guess. The one who guesses WILL get that card/point for her/his team.
One rule is that when you are explaining and time runs out, then every player can shout out the correct answer and who ever yells gets the card and point.