I made a modification (read: duplicate) of Max Marin's "radial gravity"[1] behavior, so that instead of gently pulling* things towards the actor, it sharply pulls* things. The "sharp radial gravity" behavior is made for things like explosions.
The sharp behavior works as normal, although sometimes, with negative force values, it seems to be
pulling things instead of
pushing them!
Any help is greatly appreciated!

*: The behaviors will push things away if the "Force" attribute is set to a negative number.
[1]:
https://community.stencyl.com/index.php/index.php?topic=61547.msg316777#msg316777