I’ve put the concept version of my serious Flash game online. Check out the project page. Programming was done in Actionscript 3.0, and the SDK with Flex Builder eclipse plugin. So not the actual Flash toolkit.
Direct link to the game: Nature’s Invader.

I’m taking course: Serious Games at my school. It’s about creating a game in a short period of time with: simple goal, thought-out gameplay and achieves a Flow with the person playing it. Requirements are: Action-script 3.0. But not that Flash drag & drop stuff, but coding with the SDK. Another alternative is program by Yoyogames: GameMaker. My choice is obvious. 
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