The power-ups should have the follow features:

• Spawned by a random enemy
• Randomly selected from a list of power-ups
• Power-ups should have a time limit
• Power-ups should have different effects
• Power-ups should have different models

The audio manager should have the following features:

• Play music
• Play sound effects
• Switch between music tracks
• Play multiple sound effects at once
• Have a music bus
• Have a sound effects bus

The spaceship needs the following features:

• A spacehip model
• Movement
• Shooting
• Thrusters
• Shields
• Explosion on death

These are the requirements for the asteroids.

• Big asteroids that break into smaller asteroids when shot
• Small asteroids that disappear when shot
• They should move in a random direction
• They should move at a random speed
• They should be different sizes within their type
• They should have different colors within their type
• The should signal when they are destroyed
• They should have an explosion effect when destroyed
• They should wrap around the screen
• They should spawn in a random corner of the screen

There should be a menu system allowing the player to do the following:

• View levels
• View highscores
• Start level
• View settings
• Change audio settings
• Change video settings
• View credits
• Exit game

graph LR;
    MainMenu-->Levels;
    MainMenu-->Settings;
    MainMenu-->Credits;
    MainMenu-->Exit;
    Settings-->AudioSettings;
    Settings-->VideoSettings;
    Levels-->Level1;
    Level1-->HighscoreLevel1;
    Level1-->Mode1GamePlay;
    Level1-->Mode2GamePlay;

The missiles should have the following features:

• Different models for different power-ups
• Different thrusters effect for different power-ups
• Different cooldowns for different power-ups
• Move in a straight line for a set amount of time
• Explosion on impact

The Leaderboard should have the following features:

• Show the best attempt for the local player
• Show value for each level
• Show value for each mode