カウント.アップ (Count Up) is a game of counting and bluffing that takes place over 4 rounds. In each round, players write down 5 numbers from 1 to 49 on their notepad, with certain restrictions on which numbers may be used. (A deck of cards determines the restrictions and is adjusted by player count. If a "2" is not allowed, that includes 2, but also 12, 22, 32, etc.) A player begins counting aloud from 1, and if a player has the number that has been said, that player takes over the counting. The new announcer earns one point for each number they say aloud. Once they say a number that another player has written, the new player takes over announcing the numbers and the previous announcer stops recording points. A round ends once the count reaches 50 or a player has earned 20 points. Players record their scores on their notepad and begin another round. After 4 rounds, the player with the highest total score wins.