CIRCUIT POP

Keyboard play: start a round, and the game field takes focus itself (or press Tab until it does). Then use ← ↑ → ↓ to move between live targets and Space or Enter to pop the selected one. Esc leaves the field, and End round below the field stops a round early without waiting out the clock. Each move announces the target, what it is worth, and roughly where it sits; every pop announces the points and the running score, and an arrow press reads what is now selected. Time warnings, wave changes, and the final result are announced too. Outside a round the field says how to reach Start round.