1 Way Collision With Enemy?

I've turned on the 1 Side collision with an Enemy Object, but I can't pass through it?

It works with a platform?

Is there any way this can be achieved?
Thanks

 

From what I've tried no. It can't be enemy

 

What you want to achive ? i don't understand

 

I want to be able to pass through an enemy wall, one way.
But if you return and try pass through it again, it's game over.

 

Make it Platform one way pass through, once the character passed through the other side, an invisible enemy object is spawned behind him above the wall so that way he will die if he tries to go back.