Games such as SpaceFart can take laws of physics and not just decontextualize them from volleyball but make them fun.  The relationship to physic concepts and volleyball are just like the relationship between physics and SpaceFart, they are merely guiding rules of a GAME.  

Being able to balance the complexities of physic concepts and the free nature of 'playing a game' is one of the toughest challenges for our players.  Science games allow for our players to remove the pressures of volleyball.  By decontextualizing 'play' but maintaining the underlying physic concepts a fresh relationship between science and play can be build and hopefully transfered into volleyball performance.