Reaction Duel, the Free Reflex Test Game

Reaction Duel measures your raw reflexes: the screen arms red, turns green after a random delay, and your job is to click the instant it does, five rounds, lowest average reaction time wins. Click early and the false start slaps a penalty on your average. Duel AI reflex profiles from casual to esports-grade or race a friend live; a ranked queue is coming later.

How to play Reaction Duel

1. Start a round and hover ready, the panel arms in red.
2. The moment it flips green, click (or tap) as fast as you can.
3. Never click early: a false start counts as a heavy penalty round.
4. After five rounds, the lower average reaction time wins the duel.