Basic Health Bar

6. Render Engine: Blender Game
  • Info menu >> Render Engine box >> Blender Game
7. Give the new scene a unique name
  • Info menu >> Scene box >> Name
Note:
  • I'm naming it HUD (Heads Up Display)
8. Add a Camera to the scene named HUD 
  • 3D View menu >> Add >> Camera
9. Add a Plane in front of the Camera
  • 3D View menu >> Add >> Mesh >> Plane
Note:
  • The plane will become the health bar.
10. Give the Plane a unique name
  • Properties menu >> Object button >> Name box
Note:
  • I am naming my Plane: Health_Bar