A note travels left to right on a horizontal lane with beat markers. You must land a double-tap as the note crosses each marker (tap gap 80–250 ms, best near 150 ms). Single taps are noise and cost a fault. Hits add score with precision bonus; three faults end the run. Every 10 hits, speed rises 8% and the hit window tightens. Intro, gameplay, and game-over screens with restart; exit via Exit Game (System.exit(0)).
This is a casual game.