Meteor Swarm

Meteor Swarm was the 1st full machine code game published by Electric Adventures in 1986, it is a quite hard variant of Asteroids.  It uses 16 sprite images for the main ship allowing it to turn quite smoothly and a large number of asteroids in various sizes on screen during the game.  It also includes the obligatory UFO's that ensure you don't hand around on any stage for too long.  Released in 1986 for both Spectravideo SVI-318/328 and MSX machines.  Runs in 16k.