Spark is a game written in Visual Basic 6.0 and based on the classic game Asteroids.
In Spark you're supposed to avoid the blue balls flying around.
If you come to close to them you get an electric shock and you'll lose health.
If your health is low sparks will fly from the ship and it will shake making it harder to steer.

Another big difference is that nothing wraps around the screen, the camera follows the ship.
Which also means that there's a limit to the are in which the ship can fly.
The center is marked by a green circle and the border is marked by a red circle.
Flying outside of the red circle will cause the health to drop... fast.

There are also powerups, for weapons and health.
Only health powerups are working so far though, weapons are not yet implemented.