Honestly, this is brilliant! It’s easily the most inventive adventure concept I’ve seen in recent memory. I’m so glad I got to read through it, though it definitely makes me feel humbled by my own lack of creativity. Hats off to you.
A couple of sparse feedbacks if you ever expand this (and I really hope you do, it deserves a expanded edition!): It’s Rubik, not Rubix (minor typo). The blue squares feel a shortcut: given the page constraints, that makes sense, but having a bit more mechanical guidance on how to run them during play would be a huge help.