I was reading through the comments and suddenly a simple endless world generation engine popped into my thoughts.
You asked for something that was non repeatable, and as far as i understood you did not meant to save the world layout.
So here is a little demo i just fixed.
This one is top down, but u could simply apply this same technique if u want to create a platform game.Demo
And here is the capx.Capx
Let me know i this would help.