Reaction Time Test - Chalna

Reaction Time Test - Chalna

The moment the screen flashes green — how fast can you react?
Chalna is a reaction speed game with a single rule.

■ Millisecond-precision measurement
Your reaction time is measured from the moment the signal is actually drawn on screen, and touch input is read without buffering. Not a guess — a real ms number.

■ No cheesing the timer
The signal appears after a random delay between 0.5 and 1.8 seconds. Tap early and you're disqualified on the spot. What's left is pure reflexes, not memorized timing.

■ 8 tiers, from Iron to Challenger
Your tier is decided by average reaction time and rounds survived. See exactly what percentile your reflexes rank in worldwide. Game sense, aim, clutch plays — it all starts with this number.

■ Today's ranking
Sign in with Google Play Games and your record joins a worldwide ranking that resets every day. See the top of the board and your closest rivals on one screen. How high can you climb tomorrow?

■ The window shrinks every round
Each round gives you less time to react — from 620 ms down to 215 ms. How many rounds can you survive?

■ Share your result
Right after each run, share a card with your tier and stats.

■ Made for you if...
- You play FPS, MOBA or rhythm games where reflexes decide everything
- You want to compare reaction tiers with friends
- You want a game that is over in seconds and still gets your pulse up

Just a few seconds — but those seconds decide your tier.