TwinCore

Two concentric discs spin independently—the inner disc clockwise and the outer disc counter-clockwise. Tap the inner area to shoot a needle into the inner disc, or tap the outer ring for the outer disc; collisions are checked per disc, and hitting any existing needle ends the run. Insert one needle on each disc within 0.5 seconds to trigger Twin Sync for +2 bonus points and a 3-second slowdown. Each round lasts 120 seconds; use Reset to restart or Exit to return home; high scores persist locally via Room.