Makey Makey Counter While Touching With Sound
Hover mouse over numbers
Setup a situation where you must always maintain contact with some object and hook up that object to a Makey Makey (mouse left click).
This can be a slack line with copper tape on it or a balance beam, or whatever.
Once the person touches the object (stands on balance beam with copper tape on it with bare feet) the counter starts counting up because the mouse is clicked. When they fall off the mouse is no longer clicked and the counter stops going and it says "game over."
Try it now with just your regular mouse or trackpad.
Based on Usable Counter. Just added a few things.