Choose whether you want the game to be in English, Spanish or Portuguese. After you click the option that you want to select, you will be taken to the main set of options. By default, the mode for this game is Easy. If you think you are up to handling even more of a challenge, you can click Difficulty, followed by either Medium or Hard, then OK.
You can load this game by clicking Start on the main screen. After your dog catches the scent and hops into the grass, the first duck will fly into the air. You can use your mouse and its button to aim and fire at the duck. Once you have taken a few shots, you will need to press R to reload.
LEFT MOUSE CLICK: Fire