Created a Rube Goldberg machine in crayon with Opus 5.5

Hi! This is a little physics puzzle I made. Every level is a chain reaction with a gap in it: a boxing glove punches a ball, the ball has to reach the dominoes, the last domino presses a button, the button fires a cannon... You draw the missing part in crayon and press GO. The parts are even lettered A, B, C like the old Rube Goldberg cartoons. What's in it: 7 crayons with their own physics. Blue stays put, orange is heavy and falls when you press GO, green bounces, yellow floats up, purple swings from wherever you start the line, red shoves things in the direction you drew it (cars go turbo), and black is a magnet for steel balls. Quick Draw levels start on their own. The floor is lava, your lines fade after a few seconds and your crayon refills, so you're drawing while eggs are dropping. A boss every 10 levels. Crayon monsters with hearts; the last one is a dragon that eats your lines. The eraser only rubs out the bit under it, so you can nudge a ramp instead of redrawing it. Every level is checked by a physics solver, so it's always beatable. The hint shows one answer, but lots of other drawings work too. Works on phones (landscape is best) and saves your progress in the browser. I'd love to hear which levels felt unfair or too easy! Github pages: winchxyz.github.io/crayon-contraptions