I came up with an idea for a simple game using mostly the sample assets. I created a red crate using the pink crate. Then I made a prefab called a finish zone. Pushing the red crate into the finish zone gets you to the next level.
I made a couple other robots that walk back and forth between barriers or edges. One is blue and doesn't hurt you. The other one is red and kills you if you touch it.
With those pieces I made a few levels. I'm thinking of changing the graphics and turning it into a kids game.
It is pretty cool how simple it is to get a complete game. I also made a simple menu. One thing I haven't figured out yet is a nice way to size the controls and menu items for different screens.