custom interface/os that loads programs from internet server

Hi. I need a certain program designed for a project. I'll explain how it works and what I need it to do. When you turn on the computer, I want the program to load with no signs of a bios or anything else, almost like an operating system but runs like a simple interface. After the program starts, it'll connect to the internet and load from a server, internet based games (like java and such) onto a menu that shows on the os/interface. Then through usb I wanted to be able to play these games on the internet through the interface. It needs to have a user menu also that keeps track of scores and other user stats and information. This program does not run of an operating system. Any questions please ask. Thank you.