You can steer your particle up and down. It will accelerate until maximum speed (at which point lights at the edge of the track will light up). Collect blue particles to gain points. Green particles give you speed. When you collide with a green particle at max velocity, you go deeper into the next dimension. Yellow particles bring you back to the previous dimension at full speed, or slow you down when you are not at full speed. Red particles are bad, avoid them!
Some particles have leptons around them. You can steal those by flying close to the particles. You can actiate the four different leptions to use special powers (attraction, explosion, shield and timewarp). The more leptons of the same type you have, the more powerful the action will be.
The game should be played with an xbox controller, where the coloured buttons correspond to the leptions. You can play with a keyboard as well. In that case, use z-x-c-v to activate leptons and the arrow keys to move up and down.
Make sure you have the latest DirectX version, and the .NET framework 4.0. You also need the XNA framework redistributable.