I've searching and all of them were not what i wanted, even these blocks
could not do it:

next backdrop

change x by (10)

Do you mean like when swapping into a backdrop?

when backdrop switches to [ v]
point in direction (180 v)

next backdrop
point in direction (180 v)

You could also use broadcasts.
You need to use direction blocks instead.
And how did you know to copy that block from the stage? Did you look that up or find out about copying scripts to other things, and decided to try this?
Edit: yeah nevermind that last part where I talked about copying LOL

no, that when the player touches the edge, it will make the background move, but you can go above it too. just like in other games but not in scratch.

guestlol12 wrote:

no, that when the player touches the edge, it will make the background move, but you can go above it too.

You could make the background a separate sprite then, and have it receive broadcasts. Though there's a limit to how far sprites can actually go in vanilla Scratch.
(also sorry if I confused you with the copying part LOLL)

uhh i do not know how to code it, please add all the blocks for it.