After making the tank game (rupsbandjenooitgenoeg) we thought it might have gotten a bit complicated. The points Jos has to get are pretty basic. (To understand more about this, read the Rupsbandjenooitgenoeg post).
So we created a simple, top to bottom scrolling shooter!
And we did this within 8 hours.
Check out the result at: www.moors-code.com/vlinder/