A pendulum swings back and forth at a steady rhythm. Watch its arc and release at the perfect moment to launch the ball toward the target. Hit the center ring for a bullseye worth 10 points; outer rings score progressively less. Ten throws per level, sixty points to pass. Later levels introduce moving targets and crosswind that pushes the ball off course. Twelve levels of escalating difficulty.
Release the pendulum at the right moment to hit the bullseye.