Ducks fly in from either side of the screen, climbing as they cross, and you shoot them by clicking on them. Each round gives you three shots, and the round ends when every duck on screen has been shot or has flown off. The next round then starts with fresh ammunition and slightly faster ducks.
Every duck you hit is worth 10 points and falls out of the sky. There is no penalty for a miss beyond the shot it costs, and no penalty for a duck that escapes, so the score is simply how many ducks you have brought down. Ammunition is three per round and does not carry over — anything unspent is lost when the round ends. Rounds get faster as the number rises, and from round 4 onward, and on every third round, two ducks are launched at once.
The ducks escape and the round simply moves on. You lose the points but nothing else.
No. There are no lives, so rounds keep coming and keep getting faster until you stop or press Restart.
Yes. On a touch screen the game shows on-screen buttons, and games played with a mouse work by tapping.