Hi Grue, this thread about Velocity by demosthenes may prove to be useful in your study of scripting gravity. It has some links to pictures that explain how the script works.
http://scratch.mit.edu/forums/viewtopic.php?id=16077
And this tutorial should help you on scrolling:
http://scratch.mit.edu/forums/viewtopic.php?id=2440

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Grue wrote:
I still need to figure out how to make scrolling and gravity. I also need to figure out if pie really is good tasting!
http://scratch.mit.edu/projects/Wickimen/685556 I can help you there. P.S. PIE IS GOOD
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if you want gravity, go to import sprite from file, go into things, and import the gravity ball. it has all of the scripts for gravity.
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