RHYTHM DECISION · 24 ROUNDS
Follow a steady beat, then decide whether it becomes faster or slower.
Play 24 balanced FAST and SLOW rounds. Wrong answers count, then play continues.
READY?
Four steady beats establish the rhythm before its speed changes.
Keyboard: F for faster, S for slower · Touch or mouse: use the two answer buttons.
HOW TO PLAY
Start the game with a click or tap so browser audio can activate.
Follow four synchronized sound and visual pulses at a stable tempo.
When the changed pulse arrives, choose FAST or SLOW before the timing bar empties.
AUDIO + VISUAL RHYTHM
Each tone matches a strong visual pulse, so sound-only and visual-only play carry the same timing information.
The baseline tempo changes between rounds, preventing one memorized interval from solving every trial.
READ YOUR RESULT
FAST and SLOW reaction averages include correct answers only. Standard mode contains twelve trials of each direction.
Endless mode makes tempo differences subtler and answer windows shorter as the streak rises.
QUESTIONS
Choose FAST when the changed beats are closer together than the opening beats.
Choose SLOW when the changed beats are farther apart than the opening beats.
Browsers require a user gesture before a page can create or resume an audio context.
Yes. Reduced-motion mode uses a color flash without expanding rings; audio timing remains unchanged.