Flappy Frenzy is a one-tap arcade game: guide a small bird through an endless line of pipes, one gap at a time. Runs last about a minute and restart instantly, so a crash just pulls you into one more go on phone or desktop. It is free, needs no app or sign-up, works offline on Android and the web, and keeps your best score on your own device.
Every gap rewards a well-timed tap, so the game trains your reaction speed and the fine timing it takes to thread each opening. A long run keeps you locked in, which builds focus and hand-eye coordination.
Reaction timeTimingFocusHand-eye coordination
One self-contained HTML file: no frameworks, no network calls, no tracking. It uses a 60 FPS canvas, plain JavaScript, mutable Web Audio sound, and saves your best score in localStorage. Fully offline, and it drops into any page via <iframe>.