Glad you are back. Very intersting maze, just that it's too easy to slide the bot onto the stone blocks.
I loved it, but I agree with @richardfu_. I don't know how you would fix it without limiting our view of the level, though... But here's my review about the rest of the level: Great level! It was very interesting, fun, and original. I loved the difficulty and pace/flow of the level: it gave me a slight challenge, but it was easy enough to keep me moving at most times. Glad you're back (although you probably don't remember me)!
@Frenzies @richardfu_ i originally had the stones "floating" 1 level above, making it impossible to accidentally get up top, but it made the level artificially difficult by hampering your view. Perhaps stone wedges would be in order. If you pushed B up top, he would slide back down.