Final Space Invaders Spec

The Final specification for the Space Invaders game was given to us today, this adds quite a few things that I need to do to match the spec. The things I need to add to complete all items are:

Select Screen
o Instructions
o High score
o Points for each type of alien
o 1 or 2 player selection
o Credits (optional)

Game Cycle
o Game goes through the following cycles:
 Select Screen
 Instructions/points for each type of player
Select 1 or 2 player Enter Game
Play game until player dies 3 times Cycling between player 1 and player 2
o if in 2 player mode
 Game over screen Update high score if it’s a new high score
 Select screen Return to this screen

Game should be able to
o Each level should get progressively harder
 Initial states: Alien grid position lower to the ground than previous level Alien rate faster than previous level

Score
o High score is updated at the End of Game
 if it’s a new high score displacing the old one.

Player

 Collision:
Missile hits Alien Bomb
o Sound effect on missile launch

Alien Grid
 No one alien can drop more than one bomb at a time  Individual aliens can re-launch bombs
if their respective bomb hits a shield, player’s missile, or ground Aliens can be destroyed by player’s missile
 Music tempo changes as the grid moves faster Adding to the mode and suspense to the game
Launches at random intervals Moves horizontally at top of screen in the right or left direction Launches one bomb at a time


And a few others, I'll add the rest shortly. But just realized I have a lot to do.