Prism Cascade — Physics Arcade

**Charge a light-orb, release it into a field of crystal prisms, and float the shards home.** Every crystal you shatter rains debris into the pool below, and every splash births point-bubbles that drift up toward the counting beam at the top of the screen. Bubbles that reach the beam are banked. Bubbles your own orbs or falling debris clip on the way up are gone. Hold the mouse button to charge — the cursor picks the direction, the hold picks the power, so the high and far prisms need a full wind-up. The cascade on the right is a mirror: bank shots off it for the angles you cannot reach directly. A round ends when the clock runs out, or the moment the pool settles. Three stars is meant to be hard. Targets are measured against what a strong player actually scores on that specific level, and the bar tightens as you climb — so a clean run at level 90 is a different thing from a clean run at level 9. Three-star a level and its six challenge runs open up: a crosswind that drags every orb, a mist that hides the crystals until you strike them, paper-thin bubbles, a counted quiver, a cascade that stops reflecting, and a storm that speeds up everything including what you lose. **Features** - Press-and-hold power: aim and force are independent, so every prism on every board is reachable. - 100 hand-tuned levels with time-of-day, weather and seabed that rotate as you go. - Six challenge runs per level, each with its own rules, reward multiplier and star record. - 83 achievements across four tiers — a few of them are, frankly, unreasonable. - Elegant PNG share cards for your profile or any single achievement, with your name on them. - An ability tree and a provisions shelf that compete for the same scarce currency. - Generative ambient music that changes key, tempo and mode with the weather and the match. - Impact sounds derived from the physics — a heavy break sounds nothing like a clipped one. - A friendly shark who visits now and then. The fish scatter. Everyone gets away. **Privacy** Prism Cascade collects nothing and sends nothing. There is no account, no analytics, no telemetry and no network code anywhere in the extension. Your progress lives in your browser's local storage on this device and is never synced, uploaded or shared. Share cards are drawn on your machine and saved to your downloads folder; nothing is transmitted when you make one. **Permissions in plain English** - **Storage** — remembers your level, stars, stardrops, achievements and settings between sessions. It is the only permission the extension requests. **Support & changelog** Problems, ideas or bug reports: https://dhseadev.online **New in 2.0.0** — press-and-hold power replaces distance-based aiming; star targets rebuilt against measured play so three stars is genuinely hard; six challenge runs; 83 achievements with share cards; a give-up button; rounds now end the moment the pool settles; generative weather-matched music and physics-driven sound; a rebuilt terraced cascade, seabeds and the shark. The local leaderboard has been removed — it could not be shared between people, so it was not worth the space.