How can you loose at least 1 pound a week by playing just dance 2?

-Hi I'm 5 feet tall, i am 120lb and i am going to 8th grade so i want to loose weight this summer, i know its a little late in summer but i am lazy lol, so can u guys tell me how to do that by playing just dance 2. Something like for how long and how many song per day for how many weeks until school starts something like that. Plzzzzzzzzzzzzzzz i would really appreciate it

Thanks :)))