Yes Or No Challenge is a quiz show format built entirely on binary answers: a question is posed, you commit to yes or no by moving to that side, and prizes follow.
The two-player mode is where it works best — committing to a side while watching someone else hesitate is most of the entertainment.
By physically moving your character to the yes or no side before the time runs out — commitment is part of the game.
Yes — two-player mode on one keyboard, which is where the format is most fun.
Yes — it runs in the browser with nothing to install.