Travel into the Threshold and come back.
Travel into the Fractal Room
Travel to the Carnival
Travel into the Sheep Dream
Travel up the Stairs
Travel deep into the Woods
Travel to the Sky World
Travel down the River Styx
Travel to the Lay Lines
Travel into the Underworld
Travel to FaerieLand
Travel to the Subconscious Desert
Find and unlock all the Portals
Find and photograph all 6 sheep
Find and photograph all 6 UFOs
Photograph every creature in the game.
Raise all the fast travel flags
Talked to the Man on top of the Mountain
Travel to Outer Space on the UFO
Travel to the Islands
Travel to the Wasteland
Travel down the elevator through the Forgotten Floors