Game Design Documentation:

Theme

Alien spaceships are on their way to invade Earth. The most advanced human fighter spaceship ever built is sent out to try and stop them. The spaceship has an advantage the aliens don't have. The ability to absorb the energy from destroyed alien spaceships to gain Magnitude and become even more powerful.

Gameplay

The game is a vertical scrolling, overhead space shooter. You earn points toward your total score for each enemy ship you destroy. Each destroyed ship will release a Magnitude Orb. Fly into the orb to increase your level on the Magnitude Scale. The greater level you are on the Magnitude Scale, the stronger your speed and firepower will be. If you can destroy multiple enemies in a row without them slipping past the bottom of the screen, the Magnitude Orbs will have a greater effect on the Magnitude Scale. If you crash into an obstacle or if an enemy hits you with its lasers or crashes into you, your Magnitude Scale resets and you lose 5 seconds waiting for your spaceship to respawn. Time is constantly counting down from 1 minute. In order to increase your time and avoid running out of time you must collect the Time Orbs which will occasionally appear instead of a Magnitude Orb when you destroy an enemy. Time Orbs will increase your time by 15 seconds. EMP Bombs will also appear occasionally. EMP bombs will destroy all the enemies on screen but will not yield any Orbs. If you successfully complete the stage without running out of time, you will move on to the next stage, which is essentially the same, but with a higher difficultly level. Your ultimate goal is to complete as many stages as you can without running out of time and earn the highest score.

Environment

The game takes place in a starry, mostly empty space environment. Alien ships will appear from the top and scroll down to the bottom. Asteroids will also occasionally appear as obstacles for you to navigate around.

Controls

The Arrow keys will be used to control the spaceship. Z will control the ships lasers. X will control the EMP bombs.