Click the green flag to start. Use the arrow keys to move around. Press space to smoothly scroll back to the center.
First of all, a confession: The text is another sprite, but the actual scrolling engine is one sprite. This is an EPIC scrolling engine that uses just one sprite and one costume. No clones, stamping, OR VARIABLES! That's right, there is not a single variable in this whole project! How it works: It works by enlarging a costume that at 100% covers the whole stage to 10X bigger than it normally is. Scrolling is easy: just change the sprites x and y positions. If you want to change the background, just change the World costume of the Scrolling Engine sprite. Remember that it will be 10X bigger than you see in the paint editor, and you will need to use vector, otherwise it will look REALLY pixilated. The technique for making a sprite this large is in my project "Hacked" set size and goto blocks and it can be found here https://scratch.mit.edu/projects/71313196/