Target and error
The target is an integer from one to five seconds. On release, Syncd measures elapsed time from your press. Your timing error is the absolute difference between elapsed milliseconds and the target in milliseconds. The feedback says early or late, but points use the size of that difference.
The success window
At the start of a run, tolerance is 25% of the target. The window in milliseconds equals the target time multiplied by the current tolerance. A release at or inside the window succeeds; one beyond it ends the run. For the first one-second target, the window is ±250ms. For the first three-second target, it is ±750ms. The target changes between rounds.
Suppose your target is two seconds and the tolerance is still 25%. The window is 500ms. If you release 120ms late, your score for that successful attempt is 380 points. If the error is exactly 500ms, the attempt succeeds at the boundary but awards zero points. A 501ms error falls outside and ends the run.
| Two-second target | Outcome at 25% tolerance |
|---|---|
| Release at 2.000s | 0ms error · 500 points |
| Release at 2.120s | 120ms late · 380 points |
| Release at 2.500s | 500ms late · 0 points, advance |
| Release at 2.501s | 501ms late · run ends |
How the window changes
After each successful round, your accuracy adjusts the tolerance for the next target. An error of 10ms or less restores the tolerance to at least its initial 25%. An error from 11ms through 100ms widens it by five percentage points, up to 44%. A larger successful error narrows it by one percentage point, down to 10%. The resulting window still scales with the length of the next target.
Your total is the sum of successful attempt points. The game saves your best score and best completed round locally. Learn the controls, then try to beat your best.