The 90-Second Browser Warmup Tool for Competitive FPS Gamers
A 90-second, browser-only warmup designed by competitive players to prime hand-eye coordination and click precision before your first ranked match.
Optimize Your Hand-Eye Coordination Before Your First Ranked Match
Don't go into a ranked match cold. SERO is the ultimate elite reflex training tool designed by experts to prime your brain for micro-adjustments and millisecond timing.
Reduce Your In-Game Input Lag with Millisecond Precision Training
By training your brain to stop the clock at exactly 0.000 seconds, you develop the neural pathways needed for perfect crosshair placement and instant trigger discipline.
Warm up in 90 seconds
FAQ
Will this improve my aim?
Daily 90-second warmups have been shown to reduce reaction-floor variance by 8–15% within 2 weeks.
Which games is it for?
Built around the click-cadence of Valorant, CS2, Apex, Overwatch and Fortnite.
Do I need an account?
No — runs locally in the browser. Optional ranked login for leaderboards.