The application includes all kinds of tests: intelligence, ability, reflexes, strategy, maths, science...
Some are very interesting if you want to initiate a kid into how to use a computer: a photograph made with paintings which will appear as you go over it with a mouse, some fish that disappear if you click on their bodies, etc.
But there are also more complicated games, like a submarine that you will have to submerge before it bumps into a ship: in a few second you will have to direct the rudder, fill or empty the water tanks to optimize the burden and much more.
Some of the tasks may seem complicated even for adults, like one that allows you to create jigsaws with difficult solutions.
The Windows version only includes 16 of the 58 games that the Linux version has. A screen when you start the application explains the author´s reasons for not distributing it for free.