Dog Walk for Atari 2600

You are some guy who lives near some huge factory. And you have a dog. The problem are common deadly acid rains and acid snow storms because of the permanent pollution. One freezing day your doggy really wants to go out for a walk. So you go out despite imminent acid snow storm. Did I mention that if a snowflake hits you then you die instantly? Oh surely I did. You control both yourself and your dog. You can go to the left or to the right. If you press joyfire, you tell your dog to stay. If you press it again, you tell your dog to come. He will come and stay nearby you. You and your dog only need to stay away from those deadly snow flakes for as long as possible. Snow flakes come in waves - slow falling and fast falling. After every wave the delay between seeing a snowflake and when it actually starts to fall decreases, so the game becomes harder and harder. Color/BW pauses the game.