One Hundred and Eighty

"Score 180 points with three darts in a single darts game."

- In-game description

One Hundred and Eighty is an achievement/trophy in Grand Theft Auto IV.

Acquisition
Head to a bar with a darts board either with a friend or alone. To unlock the achievement, the player has to hit the triple 20 (small red area in the 20 segment) three times in a row. Focus can be used to temporarily steady the cursor to make aiming easier.

Dart boards can be found in Steinway Beer Garden in Dukes, and Lucky Winkles in Algonquin.