Wow! This game is fantastic and you should be super proud of yourself. I loved the concept and honestly didn't want to stop playing. It is definitely a bit challenging but I really enjoy how your level design and tutorials slowly introduced you to greater complexity.
A couple updates that I think would make this game even better. The ability to copy grabber arms and group select to move objects. The help board is pretty good but a little more detail could be nice. Oh also maybe a fast forward mode, I like that you can iterate but once you've got the puzzle figured out it would be nice to speed up the cycles to either see a mess up later or hopefully complete the level.
Again, such a fantastically fun puzzle game!