The game begins with the zookeeper, who explains that his animals have gone missing. He asks the user to help by clicking the image of an animal to find it.

The games can be done in any order, but let's look at the kangaroo first. Clicking the picture of the kangaroo changes the scene to the kangaroo game, where the kangaroo and the joey are separated by several rocks. A billboard instructs the user to use the arrow keys to move the joey back to its mother. If the joey gets too close to a rock it will fall down and be immobile for a few seconds.

After each animal's game is completed, the scene changes back to the zookeeper, where the animal is now visible. Clicking that animal's picture again won't do anything.

Let's look at the camel game next. Clicking the camel picture changes the scene to an area with the camel and several flowers. Some flowers randomly change color, and the camel asks the user how many flowers are now purple. If the user gets the answer wrong, the flowers reset and the user is asked again. If they get the answer right, the camel returns to the zoo.
<"img src=http://duke.edu/~cwe3/compsci4/webpages/asg7/asg7-03.tiff">

As the game progresses, the zoo fills up with animals again!

Finally, let's consider the monkey's game. Clicking its picture brings us to an area with a pile of balls. The monkey asks the user to click its favourite ball, and gives a series of hints until the correct ball is clicked. If the monkey runs out of hints before the user gets the right answer, the correct ball glows and the monkey tells the user "It's this one!" When the correct ball is clicked, the monkey gets on the ball and uses it to roll off the screen.

When all three animals are back at the zoo, they and the zookeeper thank the user and celebrate!