Your health request is simple enough. Just use a variable named "health" and use a script like this:
<when green flag clicked>
<forever>
<if><(<{health }> <<> 1 )>
<stop all>
<end>
I am not sure about your background request. Do you want a scrolling background that only scrolls when something is near the edge, or do you just want the background to change?
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Yeah, -db-'s advice is good. Follow it!
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in that project, you can only change background if you touch the edges on the left or right side. I'm not sure if you want it like that, or just the top and bottom edges, or all the sides, but i think the programming is almost the same whichever way you want it.
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