Arcade game in C#

Hello! 

I'm a technology student, and, with some friends, have decided to make a game application for Windows 8. We want to make some sort of arcade game (like Doodle Jump or Fruit Ninja), and we were thinking of making it in C#. But after some research, and following Microsoft's tutorials about creating a Windows app, we could not find what APIs or tutorials we should read in order to create a game...

Does anyone know where to begin?

Thanks!