What would the weight of this video game be?

I charge 3.00 to mail a video game. You can send it media mail for 2.15, or first cl for under $1.50, plus, I say .50 cents for the envelope, cause I use the dollar store bubble mailers (2 in a pack). If you put a certain shipping price, that's all he has to pay. You can't ask for more. He will nail you on feedback.