Underway -- too bad about the paying job getting in the way

Well, I knew I wouldn't have much time to devote to this.  So it's a good idea I chose an educational game that will hopefully also be useful to my 8 year old daughter.  The basic idea is that a math problem will be presented (the one for the challenge will use only the 9s multiplication table).  The player then shoots a cork gun at the correct answer, which is written on a yellow rubber ducky floating by.

Inspiration is from Polaris, the Atari 2600 game.  :-)   And some little Flash thingy that I saw a long time ago -- as I recall the player simply clicked on the correct answer, but the answer was a little target that fell down.  Or something.  It was a long time ago.  :-)

I'll try and scan in the design drawing tomorrow.  I started drawing out classes today.  There are too many to finish.  :-)   But I'll make a go of it.