2D Sidescroller FLA?

Hey, I’ve been having some trouble with my game recently and I haven’t been able to get much help on the boards. So I was wondering if anyone knew of an open source 2D sidescroller FLA?

One with multiple levels would be extremely ideal.
I need to master the following things: scrolling up and down when the character moves up and down levels and when they do, having the hit test limits of the game to properly follow suit.

Any FLAs you guys know about?