Arcade
Fall Jack changes the environment around the character, so screen direction and destination direction can stop feeling like the same thing.
Identify what is rotating
Fall Jack describes a Halloween world revolving around the character, who must fall into place. Begin by observing the relationship between the character and a recognizable landmark in the current scene. Which part changes orientation when you use the supplied control? Establish that relationship before treating an ordinary left or right screen direction as a reliable description of the intended fall.
Read the destination after the turn
A rotation can make an area that was beside the character appear below or above it. After an adjustment, locate the intended destination again and inspect the route between it and the character. Do not continue from the preturn picture of the scene. The source does not explain the exact gravity or input rule, so use the live demonstration to learn how the world movement affects the fall.
Change one spatial relationship deliberately
Before the next adjustment, describe the relationship you want: for example, placing an actually marked destination in the path the character appears able to fall through. This is a planning exercise, not a guaranteed solution to a particular level. Then compare the resulting arrangement with that intention. Keeping a landmark and destination in mind makes the rotating presentation easier to reason about than repeatedly turning the world until something happens.