The reaction drill F1 drivers train with. Hold both pads, flick up the thumb on the side that falls.
DROP is a free reaction game that runs in your browser. A ball falls from the rail and you have 540 milliseconds to catch it — flick up the thumb on the side that drops.
A challenge is five drops. Play it, and your run becomes a link: everyone who opens it gets the exact same five drops in the same order, so the only variable is reaction. Send it to one person and it is a duel; drop it in a group chat and it is an open board that keeps growing. Endless narrows the window with every catch until you miss. Your best average feeds the all-time leaderboard.
No app, no download, no sign-up.