Welcome to the game. Once Pac-Man has left his house, use the Y (or C) Button in conjunction with the D-Pad to try and make him look to the right; as he starts walking in that direction, you should not shoot the windmill three times in succession as it will come off its stand and fly around the garden like a shuriken, scaring Pac-Man away. Once he has walked through the gate on the right side of the screen, it will fade out, as he proceeds to Stock Farm.
Once the screen has faded back in, shoot the haystack to make it land on the farmer, so that he does not wake and scare Pac-Man away; you will then have to shoot the milk bottle on top of the "FREE" sign to draw Pac-Man's attention to it (but if you shoot it four times, it will shatter) and shoot the crow on top of the telephone wire to make him fly down and knock the bottle off the sign (and also scare Pac-Man into running back and forth). Once he has flown away, Pac-Man will automatically notice the bottle, even if you have shot the chicken coop and the chicken has escaped from it - and he will then milk the cow (if you have not shot her and made her angry) before doing a "victory dance" and holding the bottle in the air. You will now have to try and make him look back to the left; as he starts walking in that direction, you could shoot the haystack for a second time to wake the farmer and scare Pac-Man away, for he will run back off that left side of the screen faster. Once the screen fades out for a 2nd time, Pac-Man will proceed back to his house.
Once the screen has faded back in for a second time, shoot the door of Pac-Man's house to make him go into it and clear the first mission of the game.
It is also worth noting that if you have to reset the game as a result of being in a hopeless situation and use this password, it will erase your percentage.