Skull is a pure bluffing game stripped down to its core. You have three flower discs and one skull disc. You take turns placing discs face down. Eventually, someone bets on how many flowers they can flip without hitting a skull. It is all about reading your opponents and calling their bluffs. The rules are incredibly minimal. You can play this in a loud bar with a few drinks. It creates moments of high tension when a large bet is on the line. The heavy cardboard discs feel great to handle. A brilliant filler game.