As a start, a new user's difficulty level in Daily Challenge is Elementary Challenge. It will automatically move up to the next level once the child completes a certain number of questions correctly.
Your child can also choose a different difficulty level and this difficulty level option will be restricted according to the levels achieved. At different levels, your child can earn different KoKo Credits (KKC) after completing the questions.
Please note that your child cannot change the difficulty level once any question is attempted in the Daily Challenge. Your child can only attempt questions at another difficulty level the next day.