Music
Synthwave Beat Marathon
An original endless music challenge with responsive controls, escalating hazards, and hard progressive levels.
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Maintain a rhythm combo while note speed, density, and timing precision increase.
Synthwave Beat Marathon is an original GamesJi HTML5 game. It runs locally in the browser, supports touch and keyboard input, requires no API, and increases challenge continuously.
How to play
Trigger the correct lane as notes reach the hit line. Accurate streaks restore health and multiply score.
Hard endless mode: speed, enemy pressure or decision difficulty rises as you progress. Pause with P and restart with R or Play Again after a run.
Controls: Hit lanes with D/F/J/K or tap the matching lane. Pause: P.