Delightful art & sound. The combination of gravity mechanics with the original's premise was executed almost flawlessly. I say almost, because one thing I did struggle to get used to was the (seemingly unnecessary?) mix of keyboard and mouse controls; specifically the mouse left/right click to start orbiting. Simply allowing the use of WASD and/or arrow keys would've resulted in much more fluid gameplay, in my humble opinion.
But in the grand scheme of things, this is super well done.