Xevious

Use 'Z' and 'X' keys to shoot your enemies while avoiding their attacks.

Xevious (ゼビウス) is a vertical scrolling shooter arcade game by Namco, released in 1982.[1] It was designed by Masanobu Endoh. In the U.S., the game was manufactured and distributed by Atari. Xevious runs on Namco Galaga hardware.