Cheats & Secrets - Portal 2

Cheats & Secrets in Portal 2

Portal 2 does not contain traditional cheat codes like those found in many other games. There are no in-game menus for entering codes, no unlockable cheats from achievements, and no developer-intended cheat system for altering gameplay. However, the game does include a Developer Console (available on PC) that grants access to powerful commands typically used for testing or modding. Additionally, the game is rich with Easter eggs, hidden areas, and secret content intentionally placed by Valve. This guide covers all legitimate hidden content, including console commands (with appropriate warnings), and all known secrets.

---

Developer Console Commands (PC Only)

To enable the developer console, launch Portal 2, go to Options → Keyboard/Mouse → Allow Developer Console → Enable (or just press the `~` key if already enabled). The default key to open the console is the tilde (`~`) key. Using these commands may disable achievements or break the game – always back up your save files before experimenting.

Command	Effect	Notes
`sv_cheats 1`	Enables cheat commands (must be set before using others)	Disables achievements.
`noclip`	Toggles flying through walls (no-clip mode)	Use with `sv_cheats 1`.
`god`	Invulnerability (takes no damage)	Not very useful since there’s no combat.
`impulse 101`	Gives all weapons (actually gives all portal guns, including unused ones)	Adds the Unreal Portal Gun (used in the Hub).
`give weapon_portalgun`	Spawns a portal gun (if lost)	Useful if you somehow lose it.
`changelevel <map>`	Loads any map (e.g., `changelevel sp_a2_faith_pool`)	Full list of maps found online.
`map <map>`	Same as changelevel but reloads entire level.	Must type full map name.
`sv_gravity 300`	Changes gravity (default is 600)	Lower number = less gravity.
`sv_portal_placement_never_fail 1`	Portals can be placed on any surface (even walls that normally reject)	Fun but game-breaking.
`ent_create prop_weighted_cube`	Spawns a cube at your crosshair	Can spawn other entities.
`host_timescale 2.0`	Speeds up or slows down game time	1.0 is normal, 0.5 is slow motion.

Warning: Using `sv_cheats 1` will permanently disable achievements for that save file. To re-enable achievements, you must load a save made before cheats were enabled or start a new game. Valve’s official stance is that these commands are for testing, not intended for normal play.

---

Easter Eggs & Hidden Secrets

#### Single-Player Campaign Secrets

The Rattman Dens – Throughout the single-player campaign, you can find hidden rooms that belong to the character Rattman (Doug Rattmann). These are small enclaves filled with graffiti, drawings, and occasionally a radio playing the song “The Part Where He Kills You” from the first game. There are 13 such dens in total; finding all of them unlocks the “Dirty Work of a Rat” achievement. Notable locations:

The Final Song – “Cara Mia Addio” – In the single-player ending, after GLaDOS sings “Want You Gone”, the credits roll and the turrets from Chapter 7 sing a hilarious opera version of the song. This is a hidden ending – you must not skip the credits. It’s not missable, but many players miss it by pressing Escape.

The Hidden Turret Opera – During the final chapter, when you reach the core transfer sequence, you may hear a melody coming from a side room. In the room “theater”, a group of Defective Turrets sing a short opera. This is a known Easter egg.

The Wheatley IKEA Joke – In the co-op test chambers, but also in single-player: Wheatley’s “furniture store” rant in the beginning is a joke about IKEA.

Portal 1 Reference – In Chapter 5, when you first meet GLaDOS, she mentions “the cake is a lie” if you listen to her dialogue. Also, the original test chambers from Portal 1 are recreated in Portal 2’s Chapter 5 (the old Aperture section).

Space Core – In the co-op DLC, but also in single-player, if you listen closely during the ending cutscene, you hear the Space Core shouting “SPAAAAAAAAACE!” as Wheatley floats into space. This is a callback to a voice line from the final battle.

Unused Turrets – In the chapter ‘The Itch’ (Chapter 3), you can find a room with a turret factory. There is a small chance a defective turret will start singing a lullaby.

The GLaDOS Test Chamber Speaker – If you shoot a portal behind some panels in the very first test chamber (after waking up), you can find a small room with a radio playing classical music. This is an homage to a similar Easter egg in Portal 1.

The Blue Gel Easter Egg – In co-op, if both players stand on a specific pressure plate in a hidden room (found in several chambers), a secret door opens leading to a small area with a radio and a drawing of a companion cube. This is a reference to the “Blue Gel” secret in Portal 1.

The Unused Co-op Hub – The co-op hub (which is actually a large map with multiple chambers) contains a hidden area where you can find a small model of the moon. This is accessible by using portals to reach a ledge behind some pipes.

The Final Co-op Chamber – In the last co-op chamber (Chamber 5-4), if you look up at the ceiling, you can see a hidden row of turrets that are not part of the puzzle. They do nothing.

The “Turret Waiter” – In one co-op chamber (3-3), there is a turret that can be picked up and placed on a table. It will remain there and if you leave it, it’ll be in the same spot when you return. This is a neat detail.

The Co-op Rock Concert – In the co-op level “Hard-Light Surfaces” (4-2), if you bring both player’s portal guns to a specific location, you can create a light show that triggers a hidden sequence where turrets play a short guitar riff.

The “Missing” Chapter – The game has a chapter called “The Part Where He Kills You” (Chapter 8), but there is also an unused chapter called “The Prequel” that was cut. It’s accessible via console commands but is unfinished.

Hidden Developer Commentary – If you have the game on PC, you can enable developer commentary from the main menu (Options → Audio → Enable Commentary). This reveals hidden commentary nodes placed throughout the game. These are not secrets per se, but many players miss them.

The Unused Portal Gun Model – The console command `impulse 101` gives you an unused portal gun model that has a different look (like the one from the first game’s stress test). It appears in the hub area only.

The Potato GLaDOS – While not a secret, the fact that GLaDOS’s potato form is a reference to the “Uncanny Valley” is a fun Easter egg.

Unlockable Content (Achievements)

“You Monster” – Find the hidden room in Chapter 4 (The Surprise) – no unlock, just achievement.

“The Part Where He Kills You” – Complete Chapter 8 – no unlock.

“Friends List with Benefits” – Complete co-op campaign – unlocks the “Peer Review” DLC? Actually, the DLC is separate. No in-game unlock.

“Good Robot” – Complete all co-op levels – no unlock.

“Pit Boss” – Complete the first three co-op levels – no unlock.

---

Exploit-Safe Secrets (Legitimate)

All the above secrets are intended by the developers and do not require glitches or exploits to discover. They are accessible through normal gameplay with careful exploration.

---

Final Note

If you are looking for traditional cheat codes (like infinite ammo, invincibility, etc.), Portal 2 does not offer them in a typical sense. The developer console is the closest thing, but it’s not designed for regular players and carries consequences. The true secrets of Portal 2 lie in its hidden rooms, achievements, and the clever details scattered throughout Aperture Science. Happy exploring!