4-Second Escape
One ball, one countdown. Find the spinning gap and escape and the run ends right
there — you made it. Run out of time first and the ball freezes solid in place,
becoming a permanent obstacle, and a fresh ball spawns at the center to try again.
Active: 0 0 0
Start
Restart
Pause
Sound: On
How it works: there's always exactly one active ball. It spawns at
the center with its own countdown (shown as a shrinking ring around it) and bounces
around normally, able to slip out through the boundary's gap, which continuously
rotates around the ring — same elastic bounce as the other circle demos, and it
clears the gap the instant it touches that open arc, no extra travel required, so a
rotating gap can't shut on it mid-exit. Escaping is the win condition: the run stops
the moment it happens, so you can see exactly how many attempts it took. If the
timer hits zero first instead — frozen, wherever it happens to be — its velocity is
zeroed out and it stays put as a real, solid ball (just with a thin frost-ring
outline), and a fresh ball spawns from the center to try again. Frozen balls never
disappear: they stay exactly where they froze and become permanent obstacles that
every later attempt has to navigate around, the same as the outer wall — so the
arena slowly fills in over a long run, and each attempt has a more cluttered path to
the gap than the last.