Yeah, the controls definitely need fine tuning for if a post-jam update comes out. There was a kind of unfortunate cycle in:
- Get some standard controls out ASAP, so that the level design could start (since it may get complicated)
- The levels now exist based on the original controls, and editing them may require re-testing the levels to verify that they all still work
That being said, all levels can be completed last, although some orders are definitely more difficult than others (and as you've observed, finishing the "top" levels last can be really challenging, but it is doable, it just requires some pretty precise jumps)