I estimated that it would take about ten hours to finish; well, it took a little bit longer but not too much. I'm happy with the finished product. The controls are smooth and the gameplay is nice. I'll get some feedback from players and decide if any more tweaking is in order.
A few posts ago, I mentioned I would post some code, but I decided against it in the end since I coded this in AS2 and I think everyone has switched to AS3 by now. Me, too. Starting from now, all my projects will be in AS3 and I promise to post some code and hopefully some tutes, too.
Here are some pics of the game: