SideScroller

I am a little confused as to what you are aiming at. It sounds like you want gravity added to a top-down side-scroller. I seriously doubt that is what you were actually trying to say (top-down view would put gravity on the z-axis and therefore not be very apparent). There are plenty of examples of side-scrollers and universal-scrollers with source available in uploaded scenarios. There are even some support class(es) available just for the purpose of creating scrolling scenarios. I have a demo as well as a support class for scrolling. Timed Scrolling is an unlimited universal-scrolling demo using objects to create the background. Scrolling SuperWorld is a support super-world class that is used to create a limited scrolling world. Even if you do not use one of them directly, you can still learn from the code as to how to go about creating one of your own.

Thank you, Wow I had sort of forgotten about this, figured it out myself, but thanks for replying

Hi, I'm trying to remove the main actor and then add a new main actor. However, when I add the new main actor, it goes back to the start instead of staying where it is. any help would be appreciaterd

Please elaborate and include some code, so we can get a better idea of what you are attempting to do (include what classes the codes are in and which classes they extend).