About Reaction Duel

Reaction Duel is a two-player reflex game on one screen. Each player has a button. Wait for the screen to turn green, then tap first to win the round — but tap too early and you lose it.

How to play

1. Each player puts a finger on their side of the screen (or over their key).
2. Wait for the countdown.
3. When it goes green, tap!
4. First to tap wins the round; best of five wins the duel.

Tips

Don't try to guess the timing — it's random. Watch the colour and react.