Each of the 26 worlds has a theme and focuses on an individual letter of the alphabet.
Children learn about the letters of the alphabet and become familiar with words.
There are also activities associated with each world that strengthen other skills, such as problem-solving, matching, counting, and addition. The game is hosted by Atoz the kangaroo, who helps children navigate through the alphabet. There is also a different granny in each world to interact with the children, teaching them different skills, based on each granny's different occupation. The younger player may not cover everything in every world, but that will come with age and learning. Replay value is good, because it takes a while to go through each world if you really go through everything.