▲
1
▼
In Area B: Room 2, during the puzzle "Moonshot", a tiny connector can barely be seen on the texture of the Moon. By hitting the connector with the red laser, the Moon will begin to rotate until the dark side of the Moon comes into view. The bright symbol seen on the face of the Moon is the Aperture Science logo from the Portal series. However, another small white speck can be seen on the very top of the logo.
Afterwards, in the puzzle "Man on The Moon", after launching yourself over to the forcefield, you can find a small key hidden just to the right of it. After returning to the other side of the wall, use the far-most fan to launch yourself onto the arches to the left, and then maneuver your way to a viewfinder that is unlocked by the small key. The viewfinder allows you to get a better look at the speck on the Moon, which is revealed to be Wheatley from Portal 2 staring back at you, in reference to that game's ending where Spoiler:Wheatley is sucked into a portal on the surface of the Moon.
Afterwards, in the puzzle "Man on The Moon", after launching yourself over to the forcefield, you can find a small key hidden just to the right of it. After returning to the other side of the wall, use the far-most fan to launch yourself onto the arches to the left, and then maneuver your way to a viewfinder that is unlocked by the small key. The viewfinder allows you to get a better look at the speck on the Moon, which is revealed to be Wheatley from Portal 2 staring back at you, in reference to that game's ending where Spoiler:Wheatley is sucked into a portal on the surface of the Moon.
▲
1
▼
In Area B: Room 5, it is possible to reach the top of the building just above the teleporter that brought you there in the first place. To do this, you must go to the puzzle "Behind the Iron Curtain" and while completing it, maneuver your way so that a box and fan used in the puzzle are blown out of the puzzle's walls into the Room's map. Afterwards, take the box to a nearby hole that leads to the river until you find a connector for the fan and place it there. After going back to retrieve and place the fan, jumping into it will blast you through the air across the map and onto the top of the building, which will then suddenly teleport you to a dark cave. Walking further into the cave will reveal a glass pyramid prism with a light shining through to create a rainbow. This is a recreation of the cover art of the band Pink Floyd's 1973 album "The Dark Side of the Moon", and interacting with the prism will play a short cover of the instrumental opening to the first part of the song "Shine On You Crazy Diamond" from Pink Floyd's 1975 album "Wish You Were Here".
Related Games
Serious Sam Double D
Shadow Warrior
Serious Sam II
Serious Sam 3: BFE
Shadow Warrior
Marc Ecko's Getting Up: Contents Under Pressure
Pepper Grinder
Hotline Miami 2: Wrong Number
Gods Will Be Watching
Hotline Miami
Omnibus
Ratatouille
Mega Man X3
Asheron's Call
Kingdoms and Castles
The Unfinished Swan
PaRappa the Rapper 2
1-2-Switch
Taz: Wanted
Naruto Shippuden: Ultimate Ninja Storm 2
Kingdom Hearts 0.2: Birth by Sleep - A Fragmentary Passage
Valhellio
Odallus: The Dark Call
Sonic Lost World
Mario + Rabbids Kingdom Battle
Final Exam
NHL Breakaway 98
Lost Planet 2
Phoenix Wright: Ace Attorney - Justice for All
Dark Souls III
The Cave
Rayman Arena
Heroes of the Storm
Clash of Clans
ToeJam & Earl
Twisted Metal
Need for Speed: Carbon
Shrek SuperSlam
Dying Light
The House of the Dead
Dogz: Your Virtual Petz
Dark Seed
LEGO The Lord of the Rings
Walt Disney's The Jungle Book Rhythm N' Groove
PUBG: Battlegrounds
Halo 5: Guardians
F-Zero 99
Wolfenstein 3D
The Great Ace Attorney Chronicles
Twisted Metal: Black