Thank you very much for playing and for your praise! :-)
Yes, test-playing one's own games tends to make them more difficult than they should. I'd actually say the same about Dark Horse Tim ;-)
I made sure that it can be solved when started with the space bar, figuring that that's the key most users will use first. But even then, you need to go up and down several times, because you need to go through level 92 to win in this case.