Casual

Frame Perfect

A pixel needle sweeps a shrinking scale — tap to stop it dead centre. Eight gates, each with a tighter window, and a millisecond deviation card at the end.

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The original prompt.

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Build a mobile portrait web app called “Frame Perfect”.

Cover: A CRT-green pixel stopwatch with the needle frozen at twelve, the title stamped into the scanlines. A full-bleed opening artwork drawn in code with the title integrated into it, then one short tutorial line and exactly one text button that starts play.
Core action (tap anywhere to stop the needle): A pixel needle sweeps a graduated scale; tap to stop it inside a target band that shrinks and speeds up across eight gates.
Result: a pixel certificate with the average millisecond deviation, the gates cleared and a rank. Put a real Share button on the result screen (it must post to the Eazo community) and keep Replay next to it.
Visual bar: needle trails, a tolerance arc that visibly tightens each gate, sparks on a perfect stop, CRT scanlines over everything.

Global requirements: mobile-first portrait, touch only, 100dvh with safe areas, no hover dependence. Built-in i18n with exactly two locales (English default, Chinese only after the user taps the EN/中文 toggle placed clear of the status bar), never mix languages on one screen, share output always English. Absolutely no external APIs, no login, no background music. Every control must actually work — no placeholders.