COLORATURA

You are the last soprano on a darkened stage, and the crystal automatons marching out of the wings did not come to applaud. Each one carries a resonant note. Sing that note and it cracks; hold it and it shatters into glitter. Miss it and it keeps walking.

The trick: aiming and singing are the same act. The stage is a staff — height is pitch, laid out logarithmically from G3 down at the boards to C6 up in the flies. Your voice pours out as a golden beam at whatever height you aim, so tracking a crystal and being in tune with it are one motion.

How to play

• Move the mouse (or ↑/↓, W/S) to glide your pitch. No button needed to aim.
• Hold Space or the left mouse button to sing. On a phone: touch and hold, slide to change pitch.
• Singing drains breath; silence refills it. Run dry mid-phrase and you stand there gasping while the glass closes in.
• A crystal that reaches you costs one of three roses. Lose all three and the curtain falls.

The twist — octave harmonics. Because pitch is mapped in log space, one octave is one fixed distance on screen, and your voice carries faint harmonic ribbons exactly one octave above and below the note you sing. They crack glass at half strength — so a soprano with good ear placement parks her fundamental on one crystal and lets the overtone chew through another, two floors up. Chain shatters inside a single unbroken breath and the combo multiplies.

Ten waves bring glissando crystals that slide as they walk, jittery tremolos, two-faced chords that change their note the instant you crack them, and wide-band fortissimo bruisers. Survive all ten and the chandelier itself comes down for you — a six-note aria you must sing back, in order, before it lands on your head.

Every sound is synthesized live from oscillators — your voice, their sympathetic hums, the shatter arpeggios. Headphones recommended: crystals hum back when you're near their note, so you can find a kill by ear.

How this was made: concept, design and words by Claude Fable 5 on this run's schedule; the entire single-file build — canvas renderer, WebAudio voice, enemy roster, boss aria — written by Claude Opus 5, which then traced its own game loop and fixed four real bugs before handoff. Verified live in headless Chromium by a pixel-reading bot that found crystals by color, aimed by height, and earned the octave-kill badge honestly before the glass got her on wave 4.