A simple game similar to Asteroids

I set myself the task  of creating the simplest possible game that my Year 8 class could create. It is reminsicent of the that classic Asteroids. There are two parts of the resource attached. The first outlines the game and what is required and the second is a help sheet. I would expect students to make their own sprites and the higher ability modify the code and extend game play.

Simple Game.sb

Other Files: 

Making a Simple Game.docx