Dogfight is one of the very first machine language games that Craig Stewart ever wrote, and it was published later in the April 1987 issue of Australian Coco magazine. It's a simple game with no scoring and requiring two players (one per joystick) where both fly around in a wraparound screen trying to shoot each other. Controls are similar to a real plane; pull up by pushing the joystick down, and fly down by pushing the joystick down. It features good sound effects and engine sounds (you can turn that off/on by hitting the left and right arrow keys during game play), and if you shoot your opposing player 5 times, it causes the hit plane to spin out of control for a bit, and leave some debris behind.
Title: Dogfight
Author: Craig Stewart
Publisher: Australian Coco April 1987
Released: April 1987
Requires: Color Computer 1/2/3, 32K RAM, Extended BASIC, 2 joysticks.