Single player: W/S or ↑/↓. Multiplayer: P1 W/S, P2 ↑/↓. Esc pauses.
Touch: drag on your half of the screen to move your paddle.
Pickups appear mid-field. The ball collects them — the effect goes to whoever hit the ball last.
At limit−1 the ball hits max speed, power-ups stop spawning, and the MATCH POINT banner shows.