Animation clip through object

Hello all. I’m creating a roll-a-ball type game and I’m trying to create an animated object that will push the player off the edge, but the player clips straight through it. Can anyone help me with this?

Here’s a sample scene.
https://dl.dropboxusercontent.com/u/261955553/Ball%20game%20error.html

Thanks for helping everyone!

If it has no rigidbody, then try making it have one. Hope this works.