Handslap

Handslap is the hands game from every school corridor, with the rules stated plainly: red attacks, blue dodges, and the sides swap whenever the dodge works. Ten points wins. There is nothing to learn and nothing to unlock, so the entire contest is reaction time and the small lies you tell with your posture before you commit. It is the purest two-player game in this batch, and the only one where the person who thinks longer is guaranteed to lose.