Disabled Johns Hopkins Grad Student Gyorgy Levay Builds a Mouse Replacement Controlled by Feet

Six years ago he lost is hands due to a meningitis infection.

From the story:

Earlier this year, the clunky sandal-like device won a $7,500 grand prize in the 2016 Intel-Cornell Cup, in which student inventors are judged on applications of embedded technology, and was a finalist in the 2016 Johns Hopkins Healthcare Design Competition. Levay secured a provisional patent for the device through the university.

A user activates the device's four sensors by pressing their feet into the foot bed in various ways. Those sensors, embedded in a silicon and 3-D printed plastic exterior, can be customized to follow any programmed command, but his unit is set up to perform game functions such as crouching, moving forward and backward, and moving left or right.