Game Creation Software for Kids?

-Surak- asks: "I have been asked to teach a week-long class on Computer Game Design for a small group of computer literate kids, around 9-13 years old. My plan is to have them create a simple game, while exposing them to aspects of story design, artwork, animation, and simple programming. To this end, I'm looking for a 'game construction kit' that is simple enough that they can have a working game by the end of the week with some guidance. Anyone remember the 'Arcade Game Construction Kit' on the Commodore 64? Adventure Game Studio looks good, but it may be too complex. The genre is flexible, but it does need to generate a distributable Win32 binary that they can take home. Are there any Windows packages, public domain or otherwise, that can do this, especially any designed for kids?"