This is amazing, something I thought I could never accomplish designing a multi scrolling platformer, and believe it or not, it's actually not bad when you get used it, anyways I hope you enjoy thi and the new scratch cat sprite came from @griffpatch (I don't know how to mention people that well, sorry) be sure to check him out, cause he's an amazing developer as well. Arrow keys are to move around No enemy sprites have been added yet, due to still being scripted and working their shapes and properties.
Using the old side scroller plan I had, I to modify the platforms I made making it so that when you jump, the platform begins to move down as well as up for when you fall. AND THE SPRITE BELONGS TO @griffpatch