Gaming application for childrens of age 4 to 6

I want to submit an application for my master program in which i have to design a gaming application which will be used by the children of age 4 to 6. Childrens who were deaf earlier and they got hearing devices planted to there ears and now they can listen. So i want a application in which there will be different quizs levels which they can play. In quiz's there will be options in the form of audio and there will be a photos available on every quiz. In the quiz we can develop different levels.
Through this we can track the performance of the childrens, we can give them trophies on completing the levels and other validation and functionality we can add in this application. I am looking for help if any one can buil this application for me.

Regards
Ankur Tomar