I bought today an Arduino Uno R3, and I'm looking forward to make it an HID device. I have seen many projects using a serial USB type B port. As I want to build a little gamepad, I would like to use the smaller USB mini type B port to achieve similar results. Looking it up did not seem to bring significant results.

Am I missing anything? Do I have to use a serial port similar to the one used by Arduino or can I reproduce the project using the aforementioned port?