How to get rich for a 14 year old?

I'm 14 years old. Always make honors in school and am very computer smart. I have bought a pinball machine and put it in my local washers. I make about 20 dollars a week for it sitting there. I want to know how to start off and invest. I am very good at saving money and always have at least 200 dollars from birthdays, christmas..etc. I want to get a part time job at McDonalds but it only pays minimum wage. I bike mostly everywhere and am very fit and have a lot of friends so i have better chances of getting jobs. I want to create an app on the apple store about a simpling bike game 2D that is much like tiny wings but biking and you can crash. any help?