BitBox

Hit Randomize then Play: the white playhead tracks the audio engine, particles jump from zero to 800 in each track's color right on the beat, and the sun visualizer pulses with it. The four presets (Boss, Cave, Title, Victory) sound distinct instead of just recolored. Switching pattern banks A to D feels like a real tracker, not a toy. Share compresses the whole thing into the URL hash: I reloaded that link cold in a new tab and got every step back exactly. FPS sits low at idle by design, then climbs to 77 mid-playback. No console errors either way.