Hi,
My son is 4.5 years old and we got nintendo lite for him a couple of months before .He enjoys playing with it and its good but we should restrict time limit so that they dont strain there eyes a lot.I generally give him only on weekends and that too if he behaves properly and studies well the whole week.So he keeps waiting for it and enjoys weekends.
I think it has helped me as now he knows that mom has some rules and he has to follow them.
Enjoi and birthday wishes to ur kid.
kavita.