Source: Wikipedia, "Black Widow (arcade game)", available under the CC-BY-SA License.
Black Widow is a vector arcade game developed by Atari released in 1982. The player takes the titular role of a Black widow spider defending a web from invading bugs. The player must move the spider around the web while simultaneously shooting/avoiding various bugs and collecting the bonuses that appear after the enemies are eliminated. The spider is controlled through two joysticks; the left one is used to move the spider, and the right one is used to control the shot direction.
The game is a fixed shooter and is very similar to Robotron 2084 by Williams. Unlike Robotron, Black Widow does not have as many enemies on-screen. However, the gameplay has been characterized as just as intense as its Williams counterpart. This is because in order to destroy certain enemies, the player must lure other enemies into destroying them. It is further differentiated by the Bug Slayer, a bug that helps the player eliminate enemies, with only loss of potential points being the only consequence. The Bug Slayer can help the player in tough situations, but can also prevent the player from achieving the amount of extra lives necessary to endure later, more difficult, rounds. Also, other enemies appear on the playing field as eggs, laid by other enemies. The player can move these eggs off the playing field to both eliminate the enemy and receive points, before it reaches maturity.