Want to flex your muscles, and I mean that literally, when it comes to playing video games the next time around? That can be achieved with the USB Biofeedback Game Controller, where this project will showcase the power of the muscle (EMG) sensors, thanks to Advancer Technologies. This particular DIY project is said to harness the power of electromyography, letting you control video games directly using nothing but pure brawn. A powerful yet affordable Arduino UNO microcontroller runs at the heart of things, functioning as a HID keyboard interface. Apart from that, a quartet of the new Platinum Series Muscle (EMG) Sensors have been integrated so that four muscles which act independently or in tandem with one another are able to offer control for up to four buttons. I wonder if you would end up with sore muscles after a particularly draining gaming session, and does one need to warm up beforehand?