[QUOTE=smitchell] Use the physics object --
ON Collision with object ->
object.setWorldGravity -> -10(or whatever you want.) [/QUOTE]
thanks smitchell, but as i mentioned, issuing a value of "-10" flips gravity from bottom to top along Y axes, right?
i'd like to change gravity along orthogonal axes (X axes), i.e. to make falling objects from left to right of the screen