Flex runner

Flux Runner is a one-button reflex game about split-second timing. You're locked between two rails — flip gravity to switch between them as color-coded obstacles and gems rocket toward you.

Match your rail to a gem's color to collect it. Miss a rail switch and a spike ends the run. Chain gems back to back to build a score multiplier — but one missed gem breaks the streak.

The pace only goes up from here. How long can you hold the chain?

Controls: Tap, click, or press Space to flip. Escape or P to pause.