Threshold is a classic shooter game released for the Atari 2600 gaming console in the early 1980s, developed by Tigervision. The player controls a spaceship, aiming to shoot down waves of enemy ships that appear at the top of the screen. As one of the numerous space-themed shooters of that era, it features the iconic pixelated graphics and simple sound effects characteristic of the time. Players are challenged to achieve high scores, with gameplay that gets progressively harder. It belongs to the early generation of games that defined the shooter genre.