We need to constrain the play area
We will create an invisible boundary
Add a new TiledBackground object
Don't give it any sprite or colour
Name the TiledBackground: Limits
Duplicate the left boundary and position it to the right:
Duplicate the left boundary and resize it
and reposition it at the bottom:
The final boundary outline looks like this:
Finally, click on Limits in the Project Window
Add the Physics Behaviour
So that we don't accidentally select or move the Limit
Set the locked property to true