- Removed the glass-panel door thing, which was unnecessary to solve the puzzle.

- Changed direction of the moving angled-glass panel to prevent a shortcut!

Small redesigning of the map to prevent 2 bypasses (or attempt to bypass) :

- Added a glass platform upon the exit passageway.
- The upper-left tunnel under the ceiling is a bit longer.
- The cube dispenser now works with a button, in case the cube gets stuck somewhere.