Part 42 is up:
This one does sound effects and a sound control class.
Part 43 is now up:
This one covers adding a 2nd shader (throb or pulse) and also running multiple shaders.
Part 44 is now up:
This one adds the start of a menu system, and the start of what will eventually be a Character menu
Part 45 is now up:
This one deals with text wrapping, and adding a TextZone class.