What it is
Wiggle is a snake on a dance floor. It goes where you point, and every tile it crosses lights up in your colour until someone else crosses it. When the round's ninety seconds are up, whoever holds the most floor wins it, and the next round starts on a dark floor. A match is three, five or seven rounds, and goes to the highest score: the floor you hold as each round ends, more for a round won or a snake brought down on your tail, less for a fall. Whoever opens it chooses, starts it when everyone is in, and can hold it for a moment if someone has to step away.
The mirror balls make you longer, and length is what takes floor: go round and across your own tail and every tile inside the loop is yours, whoever held it. Length is also what you sprint on: hold the mouse button, Space or Shift to go nearly twice as fast, dropping a piece of your tail every moment you do. Run into another snake's tail, or a wall, and you are out for a few seconds while what was left of you becomes mirror balls for the others. It needs a mouse.
It is a prototype. It is here to be tried, and it will change.