Click on the Green flag. If the bee touches a petal of the flower - it will change to that color. The bee wants to stay yellow. Use the arrow keys to move the bee away from the rotating flower. If the bee does change color, you can change it back to yellow by touching the yellow petal.
Starting with the idea of having the sprite change color when it touched something on the screen, the project just evolved as i worked on it. I didn't really have any idea of where it was going to go at the beginning.