Excellent idea, I loved it. Note that the interface has a feature that allows you to actually SEE the exit, that's how I solved it .
Spoiler: How to see the exit Zoom out, then swipe with TWO fingers to move the scene up. That way you can look into the level from a lower angle.
Hey buddy why there are no names on cards? In case you don't know how to add, just tap on level name and author name to add your names.