Failed upload.

Tried (unsuccessfully) to block the short-cut of getting the sphere with just a light bridge.

Several changes to try to mitigate alternate solutions recently found. Glass barrier prevents portaling from first to second side room. The turrets are positioned to be more dangerous. Prevented portaling into the easter egg room's exit tunnel. Moved grid barrier further away from pedestal button that opens the exit door. More non-portal surfaces make it harder to directly catch the sphere (but still not impossible).

Failed upload.

Failed upload.

Changed the platforms that connect the side rooms from normal floor to glass so as to prevent bounce gel splashes giving access to upper platforms.

Failed upload.

Initial version.