Game Design - Part I

Control
* Firing Laser from Ship- Spacebar
* Moving Ship Left - Left Arrow
* Moving Ship Right - Right Arrow
* Pausing - Escape

Scoring Model
I don't fully understand the scoring model of the original game, but I propose the following:
Top Row - 50 points
2nd Row - 40 points
3rd Row - 30 points
4th Row - 20 points
Bottom Row - 10 points
UFO - 100 points
Completing Level - 100 points

Moving Objects
* UFO - Periodically traverses the top of the screen going either from left to right or from right to left. Only 1 present at a time
* Space Invaders - 5 Rows, 11 columns. Move as a group back and forth, dropping down 1 level each time they hit the edge.
* Ship - Moved by the player

Static Objects
* Barriers - 3 static barriers exist, can be destroyed by both enemy and friendly fire.