A simple scrolling template you can remix for free. You must use credit in your remix, however, and change at least ONE thing, Arrow keys to move your character ( the blue box). Move it to the edges of the screen to scroll. Ideas (If you remix) - The player has a built-in reseter when it touches a certain color (It can be useful for resetting it's position if it touches something bad (like for example, lava). - The player also has a built-in reseter that can be useful for making go to the next level when it touches another color. Add multiple frames to the scrolling frames (and a colored goal, don't forget that) so that it can make the player go to different levels.
I got the idea a day ago (It makes scrolling backgrounds easier) The trick? Press X in-game to find out! You see, when the background changes, 2 lines are revealed, found at the sides of the screen. All four of them are colored equals to the previous background in order to make them invisible. When the player (In this case, the blue box), touches these lines, it sends a command to the player that tells the foreground and background (The platforms that are supposed to scroll) move in the direction of the player until the player decides to move somewhere else. To prevent the weird misplacement bug (caused by scratch trying to prevent the scrolling background sprites from leaving the screen), there are two dots beyond the edges of the screen.