In Pancake, I wrote the player movement script  and 2 of the summoning scripts.  I also scripted enemy behaviors.  I used the Unity animator to move the whole level. Doing this allowed the camera to be a stationary object, and the main character just had to stay in his bounds.  Then all then enemies were children of the level, so their movement was based on the position of the level instead of world points.

 

If you would like to play the game click the image to the left.

To download the Unity Webplayer, please go to http://unity3d.com/webplayer/.