Hello everyone! I've recently been struggling on my game, which is well, a Scrolling Platformer. Can anyone help me? My goal is to get slopes and basic collision but I do not know.

I think you'd be better off following tutorials for scrolling platformers than trying to get scripts here. Griffpatch is a really useful source and I'd suggest checking his tutorials out.

https://www.youtube.com/watch?v=Fl-LX94Z4Cc - @griffpatch's first tutorial on a scrolling platformer

try tutorials