The point of the game is to get as much score as possible before your hp reaches zero. You can use your forcefield to block bullets and destroy enemies. To replenish your energy use gravity to gain speed.

Controls:

W - Accelerate

S - Decelerate

A/D - Turn

Space - Activate Forceshield

Shift - Activate Speed Boost

Scrollwheel - Zoom in/out

P - Pause the game

M - Mute the game

IF THE GAME DOESN'T RUN (and you still want to try it):
Downloading .NET 4.5 and/or XNA redist might fix it.