Use arrow keys to move. You can hang from the ceilings. Collect all of the stars for the portal to open.
Thank you to griffpatch for scratch scrolling platform tutorial on youtube: https://www.youtube.com/watch?v=sebnyhBsXug&t=361s You are trapped in a dimension with platforms everywhere and partially working gravity. Go through the portals and go home. You will only make it to home in part 2
