Human City

Nested hint: How do I open the tetrahedron?
(sorry, cannot decode section)
Nested hint: How do I open the door to the left of the tetrahedron?
(sorry, cannot decode section)
Nested hint: How do I operate the monitors in the subway?
(sorry, cannot decode section)
Nested hint: How do I get across the chasm to a large door?
(sorry, cannot decode section)
Nested hint: How do I open the large door?
(sorry, cannot decode section)
Nested hint: How do I get past the door with the wheel of numbers?
(sorry, cannot decode section)
Nested hint: How do I get past the spider biot?
(sorry, cannot decode section)