Arcade game:Tempest

Tempest was the first game to use Atari's Quadrascan color XY generator. The full-color vector graphics game was programmed by Missile Command designer Dave Theurer. Tempest is a shooting game that was based on an idea for a first-person Space Invaders. When Theurer's original game was deemed to similar to Space Invaders, Theurer presented a new idea. This idea was based on a nightmare he once had in which monsters climbed out of a hole and attacked. Theurer turned this idea into a successful video game.
Tempest was one of the fastest and most challenging games of its time. In Tempest, players must shoot enemies coming up towards them from geometric tubes. Flippers, fuseballs, pulsars, and other enemies are killed with a C-shaped polygon weapon or a "superzapper" smart bomb. Players use a knob to spin the C-shaped weapon around in circles. To make up for the game's difficultly, players are rewarded with graphics and sound effects unlike any other game of the time. When a level is defeated, the game sucks you down the tube to the next level with a roar of sound. Fireworks light up the screen when a player writes their initials in for a high score.
The Quadrascan color XY generator proved difficult to work with. The frequent overheating of the machines meant that maintenance was often needed. However, the full-color vector graphics of Tempest are well-worth any maintenance issues. Along with the game's challenging and innovative gameplay, the graphics are what make Tempest a classic.