This is all of the projects that I made with a UFO sprite (which is NOT true, it IS identified, it's an alien space ship).
These projects were all made to teach the basics of Scratch to beginners. The UFO is how I like to demonstrate the paint editor. It doesn't take too long to draw and fits nicely into a demo.
You'll notice that at some point I realized that it would be better to make the ship glow green, rather than yellow. That was to make whoever I was demonstrating it to not think that it was an egg.