Need help: Trying to make simple fall and catch 2D game

I am trying to make a game where I have an animated sprite fall randomly from the sky. I would like it to fall randomly and continually, cloning itself over and over exponentially. The game character would then try to catch the sprites, the score going up with every catch. I know how to do everything but get my sprite to act the way I want. Any help would be very much appreciated and whoever helps will get full credit.

 

Watch these tutorials, there is 3 parts to it, you can select the part from the list on the right side of the video.
http://unity3d.com/learn/tutorials/modules/beginner/live-training-archive/2d-catch-game-pt1