Update #2

Implemented on this Update:
- Colision Between SpaceShip and Enemy
- Lives (Not visible yet when playing)
- Background
- Enemy Now Fires. UNEXPECTED
- Colision between Enemy Bullet and SpaceShip UNEXPECTED

Things to Implement:

• Score GUI
• Multiple Enemys at once
• Levels
• Player Vs Player NEW
• Multiplayer Co-Op NEW
• Main Menu NEW
  ...