Missile Command

From Wikipedia

Missile Command is a 1980 arcade game by Atari, Inc. that was also licensed to Sega for European release. It is considered one of the most notable games from the Golden Age of Video Arcade Games. The plot of Missile Command is simple: the player's six cities are being attacked by an endless hail of ballistic missiles, some of them even splitting like multiple independently targetable reentry vehicles (MIRVs), and in later levels smart bombs which can evade a less than perfectly targeted missile. As a regional commander of three anti-missile batteries, the player must defend six cities in their zone from being destroyed.