Boob Physics in Games

Interesting story about how game designers started the trend of putting bouncing boobies in their games. Boob physics, they call it. From Club Skill:

In the original Dead or Alive it was all a bit crazy. Small movement in the characters resulted in their breasts going all over the place in a 'moon gravity' type of motion. It was and is funny to look at, but at the time, it was the best thing out there. In Dead or Alive 2, or Ultimate for Xbox owners, Team Ninja took the time to make the physics a lot more realistic and slightly toned down. There was an easter egg in the game that manipulated the physics and was controlled with how old the player was, and the same easter egg still works with most Team Ninja games. Dead or Alive 3 improved on 2, but Dead or Alive Xtreme Beach Volleyball was probably the most sexually oriented title in the series resulting in a boob-fest. Again, Dead or Alive 4 improved slightly but the upcoming Dead or Alive Xtreme 2 seems to do breast physics justice. Unlike most games that have breast physics applied to both breasts at the same time, DoAX2 actually gives each breast its own set of physics resulting in a more natural, and crazy, look.