This is Centipede for the Atari 2600. The game is cartridge only. It is tested and working. The cartridge plastic is in decent condition, the top label is in fair condition with creases and color breaks, and the main label has damage on the right side but is otherwise legible (see photos).

Game Description:
Centipede is a 1981 fixed-shooter arcade game developed by Atari, Inc., designed by Dona Bailey and Ed Logg. Players control a shooter at the bottom of the screen, using a trackball to move and a button to fire at a centipede that crawls down the screen, turning segments into mushrooms. The game also features other enemies like spiders, fleas, and scorpions.