Yes there is more content. Here are two hints for the 3rd screen:
Hint 1: Is it normal that the "fence" is vertical?
Hint 2: You have seen just before a horizontal "fence" while out of bounds, and you managed to go through it.
man I got both ending and i'm stuck on the last part. Really good level design, it's funny to have difficult game like this where you don't know where you need to go
