This game is the greatest educational game ever. It is made for children, but the activities are so fun and cute, even my mother has spent hours playing this game.
The zoombinis are adorable, and getting to choose what features your zoombinis have is a great way to involve the kids in the zoombini adventure. You help these little guys travel around, so that they can all be happy in Zoombiniville.
If you do well in the challenges, buildings get built in Zoombiniville. This is a good incentive to do well, as you can see the empty fields of the town filling up with zoombinis, buildings and even fireworks when you get further along.
As you progress throught the game, the difficulty levels get harder, until the challenge level becomes too much for some children (Me as an eight year-old, for example). This can mean that you won't ever finish the game, but this doesn't matter, as the game doesn't change at all once the top difficulty level is reached, except for extra buildings in Zoombiniville.
Still, this game is tons of fun while it lasts, and I heartily recommend it for any child.
9 years later edit: Hey, these guys are remaking this game on Kickstarter! And they quoted me! XD
I'm really excited for this!
https://www.kickstarter.com/projects/zoombinisgame/zoombinis