Thanks a bunch for sharing actions!
I was looking for this one, but unfortunately it does not work with the latest version of Playmaker and Unity.
It says:
Assets/PlayMaker/3rd Party Actions/Explosion2D.cs(30,13): error CS0246: The type or namespace name `PlayMakerUnity2d' could not be found. Are you missing an assembly reference?
Assets/PlayMaker/3rd Party Actions/Explosion2D.cs(31,13): error CS0246: The type or namespace name `PlayMakerUnity2DProxy' could not be found. Are you missing an assembly reference?
Assets/PlayMaker/3rd Party Actions/Explosion2D.cs(115,17): warning CS0114: `HutongGames.PlayMaker.Actions.Explosion2D.DoTriggerEnter2D(UnityEngine.Collider2D)' hides inherited member `HutongGames.PlayMaker.FsmStateAction.DoTriggerEnter2D(UnityEngine.Collider2D)'. To make the current member override that implementation, add the override keyword. Otherwise add the new keyword