Incredible
This is a perfect puzzle app, in terms of being something that isnt just a gimmick iPhone version of something that exists in a solid form.
This requires thinking on levels that the human brain cannot easily do. Im a mathematician and I was challenged by this on the second difficulty. I gained an intuitive understanding of the structure of a tesseract where I previously only had an abstract one.
WontStopUsingMyFathersAccount about
Tesseract, v1.52