Sea Devil

Sea Devil is a 1-player side-scrolling arcade game for the Bally Astrocade.

The player controls a spaceship that moves vertically, and can accelerate left or right. The goal on each level is to destroy all enemy vessels, which appear on the map at the top of the screen. The screen scrolls laterally, and the player can shoot directly forwards while avoiding enemy fire. The player receives a bonus for each level completed, and it's game over when all ships are lost.