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You watch one word, and you answer it before the window closes.

FAST ARCADE ACTION:
› Six commands: TAP, HOLD, LEFT, RIGHT, DOUBLE and IGNORE
› The word on the pad is the instruction — never its position, never its colour
› Windows start wide and tighten every round, so what felt comfortable at round three will not at round eighteen
› A run is twenty commands; a wrong answer or a missed window costs you accuracy

FIVE PROTOCOLS:
› Reflex — three commands and wide windows, built for raw reaction time
› Precision — the full command set including IGNORE, where errors cost more than a slow answer
› Memory — watch a string of commands, then reproduce it
› Sequence — longer strings held and given back in order
› Chaos — the word drifts, scales and sometimes lies about where it sits

ENDLESS:
Three lives, no round limit, and windows that keep closing until you run out.

PUSH YOUR RANK:
Each run ends in a report: rank from D to S, accuracy, error count, score, average and fastest reaction, and the longest combo you held. The report also compares the run against your own history, so you can see whether the improvement is real or a good night.

READ THE NUMBERS:
› Performance — sessions, commands handled, personal fastest reaction, a reaction-time line over your history, accuracy per run and a breakdown per protocol
› Insights — plain sentences about consistency and trend, with the protocols that are pulling your average around
› Export — the session log, an effort log or a plain report, copied as text

TRAIN WITH A PLAN:
Five multi-day plans are included, grouped by goal: raw speed, accuracy, memory and composure. One plan runs at a time, and a run that meets the day's targets signs that day off by itself.

KNOW YOUR BASELINE:
A short calibration takes five simple reaction samples — wait, flip, tap — and turns them into a baseline everything else is measured against, along with a suggested difficulty.

SET THE PACE:
Calm, Standard and Severe scale every window. Haptics, sound, a left-handed metric row and reduced motion are all switchable. Everything is stored on the device, with no account and no sign-in.