Mental rotation, from flat to solid
Six levels of classical spatial reasoning. Start with 2D polygons, move to composite letter-forms with mirror traps, climb to 3D cubes and rectangular prisms. Level 6 rotates through five hard classical items — paper folding, cube nets, and Shepard-Metzler mental rotation — ending with a double-fold paper folding puzzle.
Total stars
0/ 35
Levels
All unlocked. L1-L5 teach rotation on increasingly complex substrates; L6 is a boss mix of classical hard items.