Boxing is yet another example of Activision taking an idea and making a fun game with it.  I'm not much of a sports game fan and I usually don't really get into sports games, but there's just something about Activision's Boxing for the Atari 2600 that I like.  It's a very simple game.  The view is an overhead view.  You see the head, shoulders, arms and hands for the two boxers.  You pretty much just punch each other.  Push the button down to punch, hold it down for combination punches.  Your score is at the top of the screen.  You score 1 point for long punches and 2 points for close jabs. If you can get to 100 points during the round, you knock out your opponent.  Each round lasts 2 minutes.  This game is pretty easy to find at a good price.