The object of the first maze screen is to move chuckie, the dog, through the maze and escape through the opening at the top of the screen directly below the chuckwagon. If you successfully escape from the maze, you will enter the reward screen.
The reward screen requires you wait until the dog dish is even with chuckie and then press the joystick fire button to allow chuckie to move to the dish and eat. This will score an additional 20 points. If you miss, no points will be awarded and you will simply go ahead to the next maze screen. In each maze screen, there will be objects appearing on the screen and bouncing from side to side. These should be avoided. If they hit chuckie, he will be frozen temporarily which will decrease your score.
Also, in each maze, there is a dogcatcher who is chasing chuckie. If he catches chuckie, you will lose a life. you only have three to start with so be careful.
When the game is over, your score will be displayed on the screen. It will be the total of each maze screen score and the total of each reward screen score.