Giskard in the dark

Giskard is a Robot lost between Universes. He wants to return where the humans are, to protect Them. Help Giskard to open Portals who drive to universes where the physics es relative.  Collect Gems, and open Portals. Find Mirror Giskards, and use them to achieve your Goal. Go through magic walls. Avoid the elastic walls, and never never fall out.  Giskard in the darkl is an easy but sometimes dist…