The Following are the cheats for the game.

Alternate walking animation

Pause the game and press L1, R1, L1, R1, L1(2), R1(2), Square.

Invisible shield

Pause the game and press Up(2), Down(2), Left, Right, Left, Right, Square, Triangle.

Spelunker mode

Start a new game, and enter “SPELUNKER” as a name. This mode has alternate dialogue, death with one hit, and the death sound from the original Spelunker.

Small Block swords

Collect Small Blocks from chests and White or Silver Slimes. Then, travel east from the castle, and cross the river. Go north, and use the Wire Rod to cross the river back to the west to find a small cave. Go inside, and speak to the NPC on the throne to exchange the indicated number of Small Blocks for the corresponding sword:

Excalibur: 20 Small Blocks
Gorgon Sword: 5 Small Blocks
Katana: 15 Small Blocks
Luck Sword: 8 Small Blocks
Mage Sword: 12 Small Blocks
Orihalcon: 18 Small Blocks
Star Sword: 10 Small Blocks

Lost Woods solution

On the way to the second dungeon you must go through a maze in the woods to reach the entrance of the dungeon. The path is forward, right, up, left, left, down, left, up, up.

Trophies

Successfully complete one of the following tasks to get a trophy:

Slice and Diced! (Bronze): Defeated a foe with a sword.
Bullseye! (Bronze): Defeated a foe with a bow.
Demolitionist! (Bronze): Defeated a foe with a bomb.
Getting the Hang of It? (Bronze): Played the game for five hours.
Defender! (Bronze): Guarded an attack.
A Formidable Foe Has Fallen! (Bronze): Defeated a Guardian.
It’s Magic! (Bronze): Used a Shader Magic.
Life is Precious! (Bronze): Maxed out the LIFE bar.
Master Magician! (Bronze): Maxed out the MAGIC bar.
Booked a Monster! (Bronze): Booked a monster in the Bestiary.
Forged a Sword! (Bronze): Made your sword stronger at the blacksmith.
You Made a Friend! (Bronze): Made a character model.
Souvenir Photoshoot! (Bronze): Took a snapshot.
Around the World! (Silver): Visited all maps.
Bestiary Complete! (Gold): Booked all monsters in the Bestiary.
All Swords Obtained! (Gold): Acquired all the swords.
Congratulations! (Platinum): Unlock all other trophies.

The following are the cheats for the game.

Cheat mode

Go to the options menu, and select the “Cheats” option. Then, press Triangle, and enter one of the following cheat code phrases to activate the corresponding cheat option. Note: Enabling a code will permanently prevent the game from being saved and trophies from being earned.

Lewis and Clark

Enter “YOU GOT YOURSELF A FINE PAIR OF EYES” as a code phrase to unlock all areas.
Invincibility

Enter “HE GIVES STRENGTH TO THE WEAK” as a code phrase.
Infinite Dead Eye

Enter “I DON’T UNDERSTAND IMNFINITY” as a code phrase.
Infinite Ammo

Enter “ABUNDANCE IS EVERYWHERE” as a code phrase.
Gun Set 1

Enter “IT’S MY CONSTITUTIONAL RIGHT” as a code phrase to unlock some weapons.
Gun Set 2

Enter “I’M AN AMERICAN. I NEED GUNS” as a code phrase to get the buffalo rifle, sawed-off shotgun, semi-auto pistol, Schofield revolver, Winchester repeater, and fire bottle x3.
Decrease Bounty

Enter “THEY SELL SOULS CHEAP HERE” as a code phrase.
Diplomatic Immunity

Enter “I WISH I WORKED FOR UNCLE SAM” as a code phrase. You will now have no bounty/wanted level.
Money

Enter “THE ROOT OF ALL EVIL, WE THANK YOU!” as a code phrase to get $500.
Horse

Enter “BEASTS AND MAN TOGETHER” as a code phrase to spawn a horse.
Infinite Horse Stamina

Enter “MAKE HAY WHILE THE SUN SHINES” as a code phrase.
Sharp Dressed Man

Enter “DON’T YOU LOOK FINE AND DANDY” as a code phrase to unlock the gentlemen’s suit.
Jack Attack

Enter “OH MY SON, MY BLESSED SON” as a code phrase to change John into Jack, John’s son.
Who?

Enter “HUMILITY BEFORE THE LORD” as a code phrase to become a nobody.
Old School

Enter “THE OLD WAYS IS THE BEST WAYS” as a code phrase to enable the Sepia filter.

There Will Be Blood reference

The town of Plainview is a reference to the main character Daniel Plainview, played by Daniel Day Lewis, in the movie There Will Be Blood. Take note of all the oil rigs.

Trophies

Successfully complete one of the following tasks to get a trophy:

High Roller (Bronze): Win over 2000 chips in a hand of Poker.
No Dice (Bronze): Complete a game of Liar’s Dice without losing a single die.
What About Hand Grenades? (Bronze): Get a ringer in a game of Horseshoes.
Red Dead Rockstar (Bronze): Kill a Rockstar or someone with this achievement in a public multiplayer match.
Fightin’ Around the World (Bronze): Knock someone out in melee in every saloon in the game in Single Player.
Strange Things are Afoot (Bronze): Complete a task for a Stranger.
Buckin’ Awesome (Bronze): Break the Kentucky Saddler, the American Standardbred, and the Hungarian Half-bred.
Clemency Pays (Bronze): Capture a bounty alive.
Exquisite Taste (Bronze): Purchase a rare weapon from a gunsmith.
Bearly Legal (Bronze): Kill and skin 18 grizzly bears.
He Cleans Up Well! (Bronze): Obtain the Elegant Suit.
More than a Fistful (Bronze): Earn $10,000 in Single Player.
Frontiersman (Bronze): Obtain Legendary rank in any Single Player Ambient Challenge.
Man of Honor / Chivalry’s Dead (Bronze): Attain highest Fame rank and either highest Honor rank or lowest Honor rank.
Gold Medal (Bronze): Earn a Gold Medal Rank for a combat mission in Single Player.
On the Trail of de Vaca (Bronze): Uncover every location on the map in Single Player.
Friends in High Places (Bronze): Use a pardon letter with more than $5000 bounty in Single Player.
Bullseye (Bronze): Get 250 headshots in any game mode.
Unnatural Selection (Bronze): Kill one of every animal species in the game in any game mode.
Slow on the Draw (Bronze): Get 10 assists in a single Hideout in a public Free Roam session.
Hit the Trail (Bronze): Get from Blackwater to Escalera before sundown in a public Free Roam session.
Posse Up! (Bronze): Create a posse and get the maximum number of members.
Most Wanted (Bronze): Become a Public Enemy for 10 minutes and escape alive in a public Free Roam session.
Austin Overpowered (Silver): Complete Twin Rocks, Pike’s Basin, and Gaptooth Breach Hideouts in Single Player.
Evil Spirits (Silver): Complete Tumbleweed and Tesoro Azul Hideouts in Single Player.
Go Team! (Silver): Be on the winning team for four consecutive victories in any team based game in public matches.
Have Gun Will Travel (Silver): Complete all Hideouts in a single public Free Roam session.
How the West Was Won (Silver): Reach the top rank for multiplayer experience.
Instinto Asesino (Silver): Complete Fort Mercer and Nosalida Hideouts in Single Player.
In a Hail of Bullets (Silver): Kill 500 enemies with any pistol or revolver in any game mode.
Long Arm of Marston (Silver): Kill 500 enemies with any rifle, repeater, or shotgun in any game mode.
Mowing Them Down (Silver): Kill 500 enemies with a mounted weapon in any game mode.
People are Still Strange (Silver): Complete 15 tasks for Strangers.
The Gunslinger (Silver): Score a headshot on any enemy using Expert targeting mode.
The Quick and Everyone Else… (Silver): Be the top scoring player in any three consecutive FFA games in public matches.
Redeemed (Gold): Attain 100% in the Single Player Game Completion stat.
Legend of the West (Platinum): Unlock all other trophies.

The Following are the achievements for the game.

Nightmare mode

Successfully complete the game to unlock the Nightmare difficulty. In Nightmare mode, the combat difficulty is increased, and there are sixteen additional Manuscript Pages to collect.

Hidden chest locations

Search the indicated locations in the videos to find the hidden chests:

Xbox 360 reference

When the doctor asks you to go back to your room at the start of Chapter 4, search the room across the hallway from your door to find an Xbox 360.

Avatar Awards

Successfully complete the indicated task to unlock the corresponding Avatar Award:

Jacket and Scarf – Female: Play the Limited Collector’s Edition Bonus Disc.
Jacket and Scarf – Male: Play the Limited Collector’s Edition Bonus Disc.

Achievements

Accomplish the indicated achievement to get the corresponding number of Gamerscore points:

Follow the Light (10 points): Take a night course of light education.
Nordic Walking (10 points): Take a walk through the logging area, meet one of the quirky locals.
Bright Falls’ Finest (20 points): Call for help.
Boob Tube (5 points): See what’s on TV.
Under a Thin Layer of Skin (10 points): Defy the park ranger.
Park Ranger (15 points): Enjoy the sounds and sights of Elderwood National Park.
Heavy Metal (10 points): Survive the bulldozer attack.
Iron Horse (10 points): Encounter a steam engine.
Wheels Within Wheels (20 points): Meet the kidnapper.
Medical Opinions (10 points): Listen to Hartman’s recordings.
Child of the Elder God (10 points): Have a rock’n'roll moment without dropping to a low health state.
Perchance to Dream (20 points): Take a moment to reflect on past events.
Drink ‘Em Both Up (10 points): Put de lime in de coconut twice.
Gatekeeper (10 points): Cut the power to the transformer yard.
The Lady of the Light (20 points): Discover the secret she guards.
Tornado Wrangler (20 points): Defeat the tornado.
Departure (40 points): Complete the game on Normal difficulty.
Hardboiled Writer (40 points): Complete the game on Hard difficulty.
Alan, Wake Up (50 points): Complete the game on Nightmare difficulty.
If It Flies, It Burns (20 points): Burn 1,000 birds.
They’re Heeeeeere! (20 points): Inanimate objects shouldn’t move of their own accord. Put a stop to this affront, oh, say, 20 times.
The Six-Gun Scribe (20 points): Defeat 100 Taken with the revolver.
Taken Season (20 points): Defeat 50 Taken with the hunting rifle.
It’s Not Just a Typewriter Brand (20 points): Defeat 50 Taken with a shotgun.
What Light Through Yonder Window (20 points): Defeat 50 Taken with the flaregun, the way Shakespeare intended.
Thunder and Lightning (20 points): Defeat 50 Taken with flashbang grenades.
Collateral Carnage (20 points): Defeat 20 Taken with indirect means.
Come One, Come All (10 points): Kill four Taken with a single shot from the flaregun.
Sound and Fury (10 points): Kill four Taken with a single flashbang.
Two For the Price of One (10 points): Kill two Taken with a single shotgun blast.
Back! Back, I Say! (10 points): Save yourself with a flare.
Float Like a Butterfly (15 points): Perform a cinematic dodge.
Missed by a Mile (25 points): Perform a cinematic dodge 20 times.
Energized! (10 points): Use 100 batteries.
Let There Be Light (10 points): Get a generator running.
Carny (10 points): Knock over five can pyramids.
Meet the Deadline (30 points): In “Mirror Peak,” make it from the Coal Mine Museum to Cauldron Lake in 30 minutes.
An Idyllic Small Town (30 points): Make it through “Night Falls in Bright Falls” in one go without dying or restarting even once.
Gunless Wonder (30 points): Make it to Cauldron Lake without firing a single shot in “On the Road to Cauldron Lake.”
Right of Way (10 points): Drive over 15 Taken.
Finders Keepers (20 points): Discover 5 hidden chests.
Every Nook and Cranny (30 points): Discover all of the hidden chests.
Paging Mr. Wake (20 points): Find 25 manuscript pages.
Picking Up After Yourself (30 points): Find all of the manuscript pages in Normal mode.
Collector’s Edition (50 points): Find all of the manuscript pages in the game, including the ones in Nightmare mode.
Damn Good Cup of Coffee (20 points): Discover 25 coffee thermoses.
Hypercaffeinated (30 points): Discover all coffee thermoses.
KBF-FM (30 points): Listen to all of the radio shows.
Couch Potato (30 points): Watch every single TV show.
Bright Falls Aficionado (30 points): Absorb every bit of local history and culture.

Achievements

Accomplish the indicated achievement to get the corresponding number of Gamerscore points:

Hungry Bottom (10 points): Complete the “Savory Salutations” movie level.
Ticking Bottom (10 points): Complete the “The Ticking Tarts” movie level.
Burnt Bottom (10 points): Complete the “Dangerously Delicious!” movie level.
Soggy Bottom (10 points): Complete the “Spelunking for Sweets” movie level.
Stuffed Bottom (50 points): Complete all 5 movie levels.
Hot Pie Bottom (10 points): Steal 10 pies.
Thinking Bottom (10 points): Complete 10 recording challenges in the bonus shorts.
Smacked Bottom (10 points): Complete 10 time challenges in the bonus shorts.
Conservative Bottom (15 points): Complete 20 recording challenges in the bonus shorts.
Swift Bottom (15 points): Complete 20 time challenges in the bonus shorts.
Greedy Bottom (40 points): Complete all recording and time challenges in the bonus shorts.
Evil Bottom (10 points): Burn, smash, or erase 50 clones.