Dynamic Scrolling ENgine for you!
I've taken the engine out of my Dynamic Scrolling game, simplified the graphics and cleaned it up so that anyone who wants to use it for their own scrolling platformer can do so.
Hope you find it useful!
http://scratch.mit.edu/projects/Mayhem/115432
Web-spinning Spider: http://scratch.mit.edu/projects/Mayhem/18456
3D Dungeon Adventure: http://scratch.mit.edu/projects/Mayhem/23570
Starfighter X: http://scratch.mit.edu/projects/Mayhem/21825
Wandering Knight: http://scratch.mit.edu/projects/Mayhem/28484