I posted the solution for "go Home" in one of the previous comments, as it's the level most people couldn't beat; I'm strongly considering somehow making it easier without neutering it - e.g. by focusing only on returning to the starting position and removing the rest of the level, or by adding more 'tutorial' levels before it.
Thanks for the feedback (it's hard to balance the game without it), and for sticking with the game for so long. If I can ask a question - did you spend a lot of time only on the optional levels, or also on the ones that are required to progress? I'm aware that I'll have to change some of the levels and also the the level progression, so knowing whether there are any levels that are intended to not be too difficult, but are, would be helpful.