LittleBigPlanet Cheats from GameGuideDog.Com:

Unlockables

Level completion bonuses

Earn all the prize bubbles on the indicated level for a completion to unlock the corresponding bonuses.

Anteater Concept and Anteater Concept With Frame: The Mines

Bad Witch Concept, Bad Witch Concept With frame: The Bunker

Big Cat and Big Cat Concept With frame: Burning Forest

Big Sumo, The Islands Concept, and The Islands Concept With frame: Sensei's Lost Castle

Boom Town Concept and Boom Town Concept With frame: Boom Town

Boss Concept, Boss Concept With Frame, and a monster truck: The Construction Site

Bunny Tail and The Gardens: Skate To Victory

Circus Concept, Circus Concept With Frame: The Frozen Tundra

Costumes Concept and Costumes Concept With Frame: Elephant Temple

Early Sackboy and Early Sackboy With Frame: Lowrider

Fairy Tale Concept and Fairy Tale Concept With Frame.: Get a Grip

Grabbing Machine, Rock God, and Rock God With FramE: Subway

Graveyard Concept, The Wedding Concept With Frame, and Skulldozer: Skulldozer

Jumping Tank, Very First LittleBigPlanet concept, Very First LittleBigPlanet Concept With Frame: The Collectors Lair

LittleBigPlanet Concept With Frame, Background Environment Concept: The Dancers Court

LittleBigPlanet Cosmos Concept, Magicians Box, and Cosmos Concept In A Frame: Great Magicians Palace

Savannah Concept and Savannah Concept With Frame: Swinging Safari

Sheriff Zapata's Explosives Machine, The Mines Concept With Frame, and The Mines Concept: Serpent Shrine

Temple Concept, Temple Concept With Frame, and a Mystical Dragon: Endurance Dojo

Terrible Oni, Islands City Concept, and Islands City Concept With Frame: The Terrible Volcano

The Collector Boss, The Collectors Pod, and The Collector: The Collector

The Gardens Concept and The Gardens Concept With Frame.: First Steps

The Savannah and The Pink Scarf: The Meerkat Kingdom

Theme Characters Concept With Frame and Theme Characters Concept: The Darkness

Wrestling Ring With Frame and Wrestling Concept: The Wedding Reception

Costumes

Complete the indicated level without losing a life to unlock the corresponding costume.

Bunny Tail: The Collectors Lair

Chicken Beak: The Dancers Court

Chicken Gloves: Great Magician's Palace

Chicken Tail: Elephant Temple

Cowboy Boots and Leather Gloves: Boom Town

Cowboy Hat: Serpent Shrine

Dinosaur Mask: The Construction Site

Dinosaur Tail: Lowrider

Googly Eye Glasses: Sensei's Lost Castle

Green Sock Puppet: Subway

Japanese Festival Headband: The Terrible Oni's Volcano

Japanese Festival Robe: Endurance Dojo

Jeans with a Belt and Cowboy Bandana: The Mines

Moustache: Burning Forest

Neon Helmet: The Bunker

Pirate Hat: Skate To victory

Pirate Hook and Pirate Eye Patch: First Steps

Pirate Waistcoat and Pirate Shorts: Get A Grip

Ringmaster Jacket: Swinging Safari

Ringmaster Top Hat and Gold Monocle: The Meerkat Kingdom

Roman Armor: The Darkness

Roman Helmet: Skulldozer

White Neon Eyes: The Frozen Tundra

Wooden Sword: The Wedding Reception

Yellow Head: The Collector

Trophies

Complete the following tasks to unlock PlayStation3 trophy rewards.

The Gardens (Bronze): Complete all levels in The Gardens.

The Savannah (Bronze): Complete all levels in The Savannah.

The Wedding (Bronze): Complete all levels in The Wedding.

The Canyons (Bronze): Complete all levels in The Canyons.

The Metropolis (Bronze): Complete all levels in The Metropolis.

The Islands (Bronze): Complete all levels in The Islands.

The Temples (Bronze): Complete all levels in The Temples.

Expert Creator (Bronze): Complete all levels in the Tutorials.

Artist (Bronze): Place a sticker.

Homemaker (Bronze): Place 10 stickers or decorations in your pod.

Fashion Sense (Bronze): Choose a costume for your sackperson with at least one item on your head, at least one item on your body, and a material.

Forager (Bronze): Collect 25% of the prize bubbles on the story levels.

Sticky Fingers (Bronze): Collect 50% of the prize bubbles on the story levels.

Treasure Hunter (Bronze): Collect 75% of the prize bubbles on the story levels.

2X Multiplier! (Bronze): Get a 2X Multiplier.

8X Multiplier! (Bronze): Get an 8X Multiplier.

Incredible Speed! (Bronze): Travel at incredible speed.

Incredible Height! (Bronze): Travel to an incredible height.

Friendly (Bronze): Complete a level with more than one player.

Party Person (Bronze): Complete a level online with 3 other players who are on your friends list.

Socialite (Bronze): Complete a level online with 3 other players who are not on your friends list.

Top of the class (Bronze): Win a 4-player game.

Traveller (Bronze): Complete a community level.

FIRST! (Bronze): Be among the first 10 people to complete a community level.

Opinionated (Bronze): Tag a community level.

Neighbourhood (Bronze): Watch Heart 5 community levels.

Networking (Bronze): Heart 3 authors.

Talkative (Bronze): Post a comment on a community level.

Creator (Bronze): Build and save a level with the thermometer more than 30% full.

Team Creator (Bronze): Build and save a level with more than one player with the thermometer more than 30% full.

Publisher (Bronze): Publish a level.

Look what I made! (Bronze): A level you published was played by 5 or more people.

Just Beginning (Silver): Complete all the main path story levels.

20X Multiplier! (Silver): Get a 20X Multiplier.

Hi Score (Silver): Collect 1,000,000 points over all levels you have played.

Booty Master (Silver): Collect all the prize bubbles on the story levels.

Dr Frankenstein (Silver): Create a living creature with at least 2 eyes, 2 legs or wheels, and a brain.

Crowd Pleaser (Silver): A level you published was played by 50 or more people.

Feel the love (Silver): A level you published was hearted by 10 or more people.

Celebrity (Silver): You were hearted by 5 or more people as a player.

Play (Gold): Complete all story levels without dying, with the exception of those levels that only end when you die.

Create (Gold): A level you published was hearted by 50 or more people and you were hearted by 30 or more people.

Share (Gold): Play 150 community levels, tag 50 community levels and heart 10 community levels.

100% Complete (Platinum): Earn all LittleBigPlanet trophies to unlock this platinum trophy.

 

Additionally there are four secret trophies.

Trendsetter (Bronze): Place a sticker or a decoration on another player's sackperson.

Cranium Collector (Bronze): Kill 100 Creatures across all levels.

Secret Stickerist (Bronze): Unlock the race in First Steps.

Sackbird (Bronze): Spend 8 seconds or more in the air.