In "Five" you have to go to the second floor where the def-cons are.

You will notice that you have to buy a blocked path to the elevator. But in reality you don't have to!

All you have to to is go to the stars, and run and jump at the same time.

Once you're in the air, sprint and try to go over the blocked path.

If it is done correct, you should be over the blocked path with out paying!