Battery Invaders

Collecting batteries give you +50% energy. Enemies might drop batteries.
Getting hit by an enemy remove 50% energy.
If you reach 0% energy, you will loose a battery and gain 100% energy, if you reach 0 batteries and 0% energy you will die.

Controls

Use your mouse of left/right arrows to rotate.
Use space, z or trigger (controller) to boost.
Use x (keyboard), left mouse button, A (xbox) or B (nintendo) to shoot.