Hi peacelover! Thank you for the nice comment. I do have to admit that the conversion is not as good as it should be - there are certain aspects of the original that I neglected to account for (wall bounce, iirc).
I do seem to recall I was able to finish the game during testing, but that could also be a false memory :)
I think this game could benefit from an online version with a level editor like the original. I heard mr. Rosen had an idea about that, wonder if he still wants to move on with the idea. It's an intriguing thought.
Thank you again, I have to check level 4 for inaccuracies.