Go on safari in this game and see if you are quick enough to be a wildlife photographer. The animals appear at random times, and you have to be quick to click them if you want to get that shot! See how many you can click in 10 seconds.
This is an example from the 2nd Edition of the book Scratch Programming in Easy Steps by Sean McManus. More info here: http://www.sean.co.uk/books/scratch-programming-in-easy-steps/index.shtm