This video isn't so much about Bella needing to find the treat.  Instead this is about her figuring out a way to
 get the treat. 

I'm surprised at how hard it is for Bella to just kick the cup over.  She'll push that thing all around the house, and get progressively frustrated as time goes on.  We've tried similar videos that I'll try to remember to post in the future, where we put the treat up high out of her reach.  After she learned how to get them down, it became easier for her.