Overlay Scene

10.  Add an Always Sensor
  • Select the active camera

  • Logic Editor >> Sensors >> Add Sensor >> Always

  • Set to run once  (True level triggering and False level triggering disabled)

Note:
  • For this tutorial, I'm using an Always sensor set to run once.

  • It doesn't matter where you attach the Logic Bricks.  I'm attaching the them to the active camera.

11.  Add a Controller
  • Logic Editor >> Controllers >> Add Controller >> And
Note:
  • For this tutorial, I'm using an And Controller
12.  Add a Scene Actuator
  • Logic Editor >> Actuators >> Add Actuator >> Scene
Note:
  • Add Overlay Scene is a part of the Scene Actuator