Easter Eggs Guide

This guide will try to reference every Easter Egg that have been found in the game.
If you don't want to be spoiled you shouldn't read this !!

Introduction

Formatting

Each section will covers a level.
The level with tower and the elevators to A/B/C show as "Nexus" on my G19 so I'll use this name.

If there is no section for a specific level it's because I had nothing to put inside yet.
Of course if you found something not listed here gladly add it :).
By the way I'm not a native English speaker so sorry in advance for the typos or the weird sentences.

An Easter egg will be written like this:

• Egg name (Credit if needed):
  Where/How to find it.
  
• Egg N°2:
  ...

Spoilers !!

Last reminder this guide shouldn't be read if you plan to find these by yourself.

Videos

If you prefer to watch instead of reading, Tengu Drop made videos about some of the Easter Eggs.
You can find them in the Playlist here.

World A Hub

• Developer Island (Elfbarf):
  In the Hub, in front of the level 7 teleporter go through the wall on the other side of the hub where a teleporter would be if there were another level between the 6 and the one blocked by wood.

World A-2

• Message in a bottle N°1 (GRIPTAPE FLYSWATTER):
  Right of the "Hall of Windows" puzzle entrance, between two rocks near the peninsula with two trees Screenshot[i.imgur.com].
  
  
• Message in a bottle N°2 (GRIPTAPE FLYSWATTER):
  Left of the extra Computer, between some rocks Screenshot[i.imgur.com].

World A-4

• Floppy Disk (Hugo B.):
  On the left area near the teleporter you can climb a slope to walk on the wall. You need to follow the path, it will be on top of the white column and the end Screenshot[i.imgur.com].
  When you finally get it, don't forget to check it's content at the nearest computer.
  
  
• Talkie Walkie (AnttiM):
  From the teleporter, go straight ahead to the opposite side of the map then jump on the path below. From here go right and jump on the platform across the gap. It will be a bit further ahead after this.
  
  
• Literal Easter Egg in a nest (cSg|mc-Hotsauce):
  Get on the far right side of the area, behind the "Push if Further" puzzle. There is a path going down with a U-turn near a tree. The Egg is hidden on the right side of this turn. This his hard for me to describe so here is a Screenshot[i.imgur.com].

World A-6

• Rakovsky Letter Rocks (Tengu Drop):
  In "Mobile Mindfield", stick to the left for a while and, on the other side of the wall next to a stationary mine and behind a bush and tree, there are rocks with letters on them.
  Screenshot[i.imgur.com]

World A-7

• SOS Signal (Dante):
  At the far right of the shore, it's written in the sand. Screenshot[i.imgur.com]
  
  
• Terminal with Blue Screen of Death (AnttiM):
  At the far left of the shore, look at the screen of the terminal.

World A-Star

• Mirror:
  Right of the entrance of the "Jammed from Within" puzzle. The path is hidden behind some trees.

World A-Messenger

• Infinite Monkey Cage (Kakuseijin):
  In an area behind the waterfall on the right of the teleporter. You can access it by jumping from the right side of the cliff. It's a reference to the popular BBC Sci-fi Radio: The Infinite Monkey Cage.

World A-Developer Island

• QR Code in "Hall of Fame" (Tip from Meowish):
  An Easter Egg inside an Easter Egg! In the "Hall of Fame" of the Developer Island, located in a corner of the map, one user's avatar, Atte "Finzy" Härkönen, has a QR code, which when scanned says: "Manliest man alive. Have some free mouthwash, free shampoo and free shower curtains for decoding this."
  Screenshot from Meowish

World B-1

• Soldier Helmet (Kein Zantezuken + Asdolg):
  In puzzle "Window through a Door" in the last area where you get the tetromino. You can see it (in 3rd person mode) across one of the wall to the desert.
  In "Road of Death" take the cube to the other side. Then place it near third window and jump in it. From here go carefully around the map back to where the helmet is.

World B-2

• Bedroom ("Do androids dream of electric sheep" reference)(Elfbarf):
  It's just outside "The Tomb" puzzle. Go right from up the slope leading to the star area. From here you have to jump on the left side of the tomb entrance. Here it will be inside a hole in the ground.
  
  
• Telescope + Spaaace (Kein Zantezuken + EvilChip):
  On the left side of the moon you can see a connector (Bind the zoom, it help).
  Power from the "Moonshot" puzzle using the connector and the red laser. Surprise !!
  For the telescope, get Inside "Man on the Moon" puzzle. First you need to get the key in the far right area of the puzzle, it's easy to find. The telescope is just above the key.
  To get there, use the left fan to jump on the platform on the left. To manage this you must hold left and bounce on the column during the jump.
  Look into the telescope... Spaaaaaaaaaaaaace :3. Screenshot[i.imgur.com]
  
  Note: If you have trouble getting to the telescope, another method is to drop a box mid-fly on top of the column and use it to stop yourself.

World B-3

• Funky Hallway (Dinjoralo):
  Just right before the entrance of the "Blown Away" puzzle, go to the shadow on the right. In the corner you'll find a slope leading to this Easter egg.
  
  
• Pacman (Dante):
  From the entrance, go to 8 o'clock into the corner of the map. If will be just below the palm tree.

World B-4

• Hidden Cinema (Elfbarf + Jorsh):
  Right behind the teleporter you can use the wall and it will open. But it will show you and "entry denied" message. Screenshot[i.imgur.com]
  In the "Wrap Around the Corner" puzzle (first one on the left), you will find an "approved" stamp on the Hint Altar. Screenshot[i.imgur.com]
  No get back to the message and stamp it away :3.
  
  
• Dynamite:
  Again in the "Wrap Around the Corner" puzzle, get into the far right area. Then jump from the stairs to the wall. You'll find the dynamite just where you land. Screenshot[i.imgur.com]
  You can then go use it on the Sphinx (left side). Screenshot[i.imgur.com]

World B-5

• Telescope + Liberty Statue:
  Behind the "Alley of the Pressure Plates" you will find it in the middle of the sunken structure. To be able to use the telescope you first need to get the key in the water right below it.
  
  
• Hidden Cave:
  In the "Behind the Iron Curtain puzzle", get to the fan with 2 boxes and bring those up on the platform. Now put one on the air flow, use the other one to jump on it then take it with you before jumping on the wall. Now jump into the small area below.
  Here start by sending the box outside using the fan, then take the other fan with you before getting outside.
  From here take the box and the fan to the other side of the nearest sunken contraption. Use the box to get on the wall and put the fan into the mechanism. Jump on this fan !
  You will land right next to the teleporter.
  
  Note: When you get on top of the wall, if follow it you can actually jump on the sunken structure for another fan and a way to land right on top of the mechanism. Maybe taking the box out wasn't the intended way but it's much easier like this.

World B-6

• Sam's Room:
  You need to climb to the top of the teleporter room. Start from the only stone you can jump on, next jump on the statue and then on the wall. This screenshot should help you[i.imgur.com]
  From here jump on the edge sticking out of the exterior wall and follow it to the left until the end.
  Then jump from column to column until you get to the top. Screenshot[i.imgur.com]

World B-7

• Coconut tree:
  From the teleporter, if you look in direction of the pyramid, on the left you will see a leaning obelisk. It's right there, look up :3.
  
  
• CRObar + Cube Room (Kakuseijin):
  Go left of the "Whole Lotta Jamming" puzzle and follow the wall until you see some ruins. Here you will find Freeman's favourite weapon. Screenshot[i.imgur.com]
  From here continue in the direction of the ruins with two obelisks. On the way stop at the half sunken statue. On the ground there is some wooden planks to break.
  Get inside. Screenshot[i.imgur.com]
  Inside the room you can break one of the boxes for a little surprise.
  
  
• Skeletons (Roidosaurus Pecs):
  Behind the "Bouncing Side by Side" puzzle on a tiny dune. Screenshot[i.imgur.com]

World B-Messenger

• Head Statue "The Swapper" reference (Kakuseijin):
  From the entrance, get to the river and follow it in the wrong direction, you'll reach an underwater passage way.
  You can use the two rocks in front of it.

World C-1

• Glitchy Room with Elohim:
  This one is so hard to miss It's certainly more part of the story than an Easter Egg. But I'll add it anyway to avoid any "you missed something obvious" talk :3.
  Looking at the entrance of the puzzle "The Conservatory", follow the right wall of this puzzle. You will soon hear and see a glitchy square on the ground. Just walk on it.
  
  
• Gnaar Statue:
  On this map you can find 10 parts of a Gnaar statue hidden a bit everywhere outside the puzzles areas. There is a pedestal on which you can rebuild it for a little surprise.
  I'll eventually write a full guide for this but meanwhile you should look at this video guide from Tengu Drop: Here .
  
  
• Time of Eve reference (vexon837):
  In "Multiply Impossible Ascension", you need to stack up all three boxes on the forward-right corner to scale up the walls and roof. Eventually when you get to the rampart, follow it to the spot above the entrance, you can see something glowing. Just make the jump on top of the rampart with the last box and you'll get it.
  Screenshot[i.imgur.com]

World C-2

• Fork Parker & Money (Serious Sam):
  From the teleporter, go straight ahead into the red door of the chapel looking building. It's not solid.
  
  
• Telescope & King Gnaar:
  Inside the "Rapunzel" puzzle, if you go up the ladder and turn around, you can get a key on the left gargoyle.
  From here you need to bring up a platform and a Hexahedron. Then record youself first holding the platform next to the box (so you can jump on it) then jump on the cube to get high enough to reach the telescope Screenshot[i.imgur.com].
  The Gnaar is at the top of one of the mountain.

World C-3

• Gandalf Gnaar... Gnaardalf ? (Millbee):
  In the "Weathertop" puzzle, head directly to the cliff edge opposite of the entrance and look down.
  
  
• Serious Sam in Carbonite (LostHopeFate + Tengu Drop):
  Go through the purple field just to the right of the previous easter egg. Here jump down from the cliff edge to small ledge with a tree. Then follow the ledge.
  Tengu Drop made a video on how to get there: Here.
  
  
• Snowman:
  In the "Jammer Quarantine" puzzle, it's behind the quarantined jammer on the promontory.
  It's possible to reach it using the jetpack, but another way is to take an Hexahedron, put it on the fan, then jump on it as the laser connects to the connecter to activate the fan, then you can jump to the snowman from up high.
  Don't forget to fix up his fallen button for a surprise.
  
  
• Jetpack !! (MrChocodemon):
  To be able to get this you need to finish every puzzle in this level and get the star. If you don't the path will be closed.
  In the puzzle "Big Stairs, Little Stairs", go straight ahead of the entrance and to the cliff edge on the right of the blue laser emitter. Here if you jump down carefully you will reach a cave.
  If you still can't find it, Tengu Drop made a video on how to get there: Here.
  A quirk with this is that, if you try to leave the area from anywhere but "Big Stairs, Little Stairs", the game will say: "Warning: You are leaving the battlefield area!" (exer2k)
  
  
• Frozen Gnaar Cave (Anonymous & shy friend):
  To get in there you need to fly below the entrance of the "Big Stairs, Little Stairs" puzzle using the jetpack. (Here)[i.imgur.com]
  The puzzle to get inside won't be hard to solve if you got that far. You need: 3 Jammers, 2 Hexahedrons, 1 Fan, 1 Connector and a Red laser from the "Three Little Connectors... and a Fan" puzzle.

World C-4

• Pictures of the developers (Rapture Rising):
  Before the "Stables" puzzle, jump on one of the left gargoyles and then on the wall.
  The pictures are on the balcony, you can get up there using the "Casual" or the "Hardcore" way.

World C-6

• Diamond Sword from Minecraft (Sciz + Tengu Drop):
  In the puzzle "Circumlocution", in the area where the Tetromino is you can find a gap in the wall hidden by some trees.
  This sword can be used to slash some vines behind the teleporter. It will reveal a QR code with a message in Croatian that translate to "you are not here". It's a reference to Antichamber.

World C-7

• Another Snowman (Konoro-chan):
  In the puzzle "Carrier Pigeons", it's in the area behind the altar. You can get there by stacking three hexahedron and jumping on it from the nearest platform.

World C-Star

• NEXUS spelled with lasers (Tengu Drop):
  In "Nexus", complete the puzzle, then use the fan that's on the way out where you'll find another fan that lifts you above the level, and from there you can see that the lasers spell out the puzzle's name.
  Screenshot[i.imgur.com]

Nexus

• Talkie Walkie 2 (Sciller4):
  In the World A Elevator, you can see a platform with a door, unreachable from ground level. To reach it, you need to scale up the pipes, follow the metal beams, then make a jump to it. Before the door lies a walkie talkie that you can interact with.
  Screenshot[i.imgur.com]
  
  
• QR code by a famous cracking group (Kein Zantezuken):
  Right of the elevator to the C world you can see a bunch of QR codes. Look at who signed the bottom left one.
  
  
• Steins;Gate reference:
  Again in the C world elevator room, by entering it, you go left, climb up the stairs onto the walkway, look up at the pipes on the ceiling and that are on the side closer to the elevator, and you'll see something written on the upper side of one of them; 1.130426, a reference to Steins;Gate, one of two in the main campaign.
  Screenshot[i.imgur.com]

Tower

• The Mentalist Red John Smiley Face (Tengu Drop):
  In Tower Floor 3, drop down to the roof bellow from outside, then you need to make a long jump to a platform on a concrete beam on your right (or if you're looking at the tower, go left). Behind it, there's the Mentalist Red John Smiley Face.
  Screenshot[i.imgur.com]
  
  
• Hidden QR Code (Dante):
  From the floor 5, go out the window to the pigeons, then jump down on the left of to level 4's roof instead of aiming for the star. From here jump again to the left and land on the roof of floor 3's elevator. The QR code will be on the balcony on the right of the elevator. Screenshot[i.imgur.com]
  For those without a smartphone, it read:
  

  I %§& fall down here, %$$ch@§(# this area look very gl#tchy# *a%§%#p@t & secret/easte&$egg here%§#2014 07§29%14:40#58#CE$T*Build:206690 \n -- angel0%geel$-ext

  
  
• Serious Sam Game Poster:
  Take the same path than for the QR code, but instead of jumping down to the balcony at the end, jump to the other side of it. From here you can jump on top of floor 2 puzzle. Screenshot[i.imgur.com]
  
  
• Robotic Hello (Tengu Drop):
  When you complete Floor 5's puzzle, bring an item to the purple door at the very end. Instead of the usual "Denied" sound, there's a robotic "Hello".
  
  
• Steins;Gate reference... again (Tengu Drop):
  Just before the purple door leading to the final sequence of the game/puzzle, drop left onto a pipe. You need to follow the pipes (you'll have to make one jump) until you reach something written on one of them, "Pipeline 1-048596".
  Screenshot[i.imgur.com]
  
  
• A metaphorical firework show (ShaireN):
  During the final sequence when you're ascending the Tower alongside the Sheperd while Samsara tries to stop both of you, the dark clouds that would usually be seen atop the Tower from below will be rising up. These dark clouds also happen to bring flying trash along with them, and in said trash, there are pieces of paper that would have a too high-res texture for their usual purpose, but upon taking a closer (and quick) inspection, you can see it's an ad for Mirnovec Pirotehnika, a fireworks company; the company in question is very well a metaphor for the climax/conclusion of the game, say, synonymous to a firework show. While the dark clouds do kill you if they get above you, you can stand on the final platform holding the last fan that would bring you to the ending, above the white clouds, and on that last platform, the instant-kill clouds stop right below it; this is the perfect place to try and get a glimpse of the ad without the risk of dying.
  Screenshot from ShaireN

Miscellaneous

• Jammer shenanigans fix (Tengu Drop):
  Put a Jammer next to a barrier you're jamming, then try to push it to the other side of it by placing a Cube on top of it. It was an exploit players found, but now after a patch, a nice developer takes the Jammer and puts it on the proper side.
  Screenshot[i.imgur.com]
  
  
• (NEED CONFIRMATION personally, since [Neon] has his 100% save in another version and he lives in Antarticanada) Robot laugh when doing the LOL Achievement (various users, but also jadielyn):
  While doing Tetromino puzzles, if you put 2 Ls and a square in a way it'd spell out "LOL", which is necessary for an Achievement anyway, so it may be hard to completely miss, a robot can be heard laughing. However, I [Neon] don't recall hearing it, and when I researched online, other people dong the Achievement didn't had the laugh, so I'm not sure if it's exclusive to certain puzzles, such as in the Tower.
  A video from Collin Moris showcasing this, but this could/should be doable in other puzzles with 2 Ls and a square tetrominoes.
  
  
• Reading the QR Reader Achievement (kind of a mouthful) (Emaneri):
  Croteam really loves putting little secrets everywhere (well we should know by now); one of the Steam Achievements is the "QR Reader", which upon looking at it, is an image of a QR Code, and it is readable by devices. Upon scanning it, it does not lead to a Web Page, but gives you texts, reading "Secrets everywhere". Well that is true, Croteam.
  You can find the QR Reader Achievement here and see for yourself here.
  
  
• QR Code emoticon:
  The QR Code emoticon for Steam chat for the game (:qr:) may not do anything in its small form, but when you scan the bigger version that you see by hovering the mouse on it, it leads to an interesting article:
  https://stratonofstageira.wordpress.com
  
  
• The Talos Principle Deluxe Double Vinyl QR Code (Reddit):
  A very obscure Easter Egg, since this one is from a product that is harder to come by now. On the Vinyls' coverart, it sports kind of the same picture of the Child holding the cat, but the exception here is, on the robot's torso/belly region, there's a QR Code, slightly obstructed behind the title "Made of Words". Since it's partially hidden, Reddit users looked into it, and it may have been a link to a YouTube video that has been taken down, but while it may be up to debate, that video may have been of "a lamb saying "Yeah"". ...yeah.
  Laced Records' Double Vinyl product page.[www.lacedrecords.co]
  The Reddit thread talking about this Easter Egg.

[joridiculous]

Robot laugh when doing the LOL Still works in ReAwakened. (I did the lol on one of the purple i think)

[Eri the Switch]

Back here from the remake! The tower elevator reports its vendor/model as 0x10DE and 0x06CD; these are the vendor/product IDs of... Nvidia GTX 470. Yes, really.

[123ArtAttack!]

Don't know if anyone else has pointed it out, but the "Telescope + Liberty Statue" is a reference to the original "Planet of the Apes" movie (1968)

[mike]

I got the robot laugh when I spelled LOL in the very last tetromino puzzle, the one on level 6 that leads to the Become A Helper ending.

[Bob!]

The "LOL" Robot laugh definitely only happens in certain puzzles. I got the achievement but no laugh on one random puzzle, however on the Tower Floor 2 door I made the LOL (after getting the achievement) and got the laugh.

[Neon Henchman]

Most of the Easter Eggs don't do anything for you, but there are still a few that are saved on your Save File;
-The most important one in my opinion, CRObar + Cube Room at World B-7, you can free a kitten in one of the crates in the secret room and that changes the True Ending a bit.
-The Floppy Disk (Hugo B.) at World A-4 does add new entries to your Logbook too.

Might as well add these here, Road to Gehenna DLC has more of these:
-World 2 has a Floppy Disk that allows you to play Serious Sam: The Text Encounter, that is indeed saved on your Save File and other characters in the Forums react to it.
-Same goes for the Jerusalem Floppy Disk in World 4, and it actually has progression in itself, you'll have to do the right choices and in a certain order to see its true ending.
-I believe the Leprechaun in World 1 of the Road to Gehenna DLC is also saved, but it only really has an effect when everybody other than Admin are saved.

That seems to be all of them that do something for you.

[Immortalist]

Do Easter Eggs give you anything special like a bonus or point or something?

[Neon Henchman]

Mmh, well if I do get a VR set, which I have yet to go out of my way to do, that could be something I work on, making a VR version of the guide. And it's funny you say that, I was kind of tempted a while back to just copy-paste, but then you've said there are some secrets that aren't in VR, so thanks for the trivia as for now.

[Grey Acumen]

4) Would be greatly appreciated if you could either create a mirror guide on the VR version, or at the very least update this guide to maybe add a section for VR users, so they don't tear out their hair looking for Wheatley. I was stuck for HOURS trying to figure out what to do with that "moon" and where the keys were supposed to be

[Grey Acumen]

3.) In the VR version, you can place cubes THROUGH walls in order to make them available to areas they aren't in natively. I feel like this HAS to be intended by devs, simply because no other object can be placed this way; they wont leave your hand until you place it in the room you are also standing in. It has to be deliberate to specifically exclude the cube from this restriction.
But the wall can't be too thick; if the wall is as wide as the cube, you'll lose the cube inside the wall making the attempt. This means that even while using this exploit, you still have to do some careful problem solving to get them where you need them.