- version9.html Click to play. View source for standard boilerplate HTML.
- version9.scm Beginner Language code as compiled.
- world.js Limited support for World teachpack and primitive procedures.
The original source code was modified by
- encapsulating the projector initialization in a single procedure,
- replacing images of balloon and plane with rectangles.
Tested in Firefox 3.0.1 and Camino 1.0.4.