Thanks for the great game!
Love the name (hated "Non-Euclidean Room", the geometry is Euclidean here, it is just the topology which is weird).
For the sequel maybe the third-turn space could be used for something, it has similar Escher's Relativity effects, but is a complete manifold, not walls with portals (a bit like in Manifold Garden but connected in a more Escheresque way).