Xevious (ゼビウス, Zebiusu?) (prounounced "Zeh-vee-us" or "Zee-vee-us") is a vertical scrolling shooter arcade game by Namco, released in 1982. It was designed by Masanobu Endō. In the U.S., the game was manufactured and distributed by Atari. Xevious runs on Namco Galaga hardware.
The player uses an 8-way joystick to pilot a combat aircraft called a Solvalou, which is armed with a forward-firing "shooter" for aerial targets and a "bomber" which fires an unlimited supply of air-to-surface bombs for ground targets. The game, presumably set in Peru, was noted for the varied terrain below, which included forests, airstrips, bases, and mysterious Nazca Line-like drawings on the ground.
Source: Wikipedia, "Xevious," available under the CC-BY-SA License.