S.P.H.E.R.E.S. stands for "Super Phast Homogenious Ergonomic Radiating Extraterrestrial Spheres", and is a XBox360 game developed with the XNA framework.
Each player controls a sphere, with the objective to pick up the futuristically looking coin, and deliver it to the base. Only one coin is present in the arena at all times, so the players have to compete for it. Powerups like bombs, mind control, speed and mass boost, and of course the realistic physics engine make way for action packed duels and races.
Please note that due to the usage of the XNA framework, only subscribers of the XNA Creators Club are able to run the game on the XBox.