Dead Rising 2 Cheats - Xbox 360

Achievements
Complete the following achievements to unlock Xbox Live Gamerscore points:

Zombie Genocide Master (20) - Kill 72,000 zombies.
Vigilante Justice (20) - Defeat 5 psychopaths.
Judge, Hury and Executioner (20) - Defeat 10 psychopaths.
Zombie Fu (20) - Kill 1,000 zombies barehanded.
Wrong kind of "Chopper" (20) - Kill 1,000 zombies while riding a motorcycle.
He hasn't covered wars... (20) - Use every type of firearm on a zombie.
Head Trauma (20) - Use every type of melee weapon on a zombie.
Death From Afar (20) - Use every type of ranged weapon on a zombie.
Explosive Temper (20) - Use every type of explosive on a zombie.
Slaughter - S = Laughter! (20) - Use every type of novelty weapon on a zombie.
Zombie Slaughter (20) - Kill 500 zombies.
Zombie Destruction (20) - Kill 5,000 zombies.
Z-Genocider 2: Genocide Harder (20) - Kill 53,596 zombies.
Come on! Follow me! (20) - Escort 8 survivors at once.
Saving the Day (20) - Save 10 survivors.
Father of the Month (20) - Give Katey a gift.
Father of the Year (20) - Give Katey every possible gift.
Justice Served (20) - Complete Overtime Mode.
Better With a Friend (20) - Solve all case files in Co-op.
Don't you die on me! (20) - Revive another player in Co-op.
Big Spender (20) - Spend $6,000,000 in Fortune City.
Window Shopper (20) - Enter all the stores in the game.
Masquerade (20) - Have 10 zombies with masks on at once.
Improper Behavior (20) - Spraypaint all Zombrex posters.
Hero of Fortune City (20) - Save 50 survivors.
Needs more chainsaw (20) - Create a combo weapon.
Duct Tape FTW (20) - Create all combo weapons.
Apprentice Rising (20) - Reach level 25.
Professional Rising (20) - Reach level 50.
Fashion Aficionado (20) - Change into 10 different pieces of clothing.
Chuck Greene: Crosso Dresser? (20) - Change into all the clothes in the game.
Clean Record (20) - Complete The Facts.
Bartender (20) - Mix a drink.
Look at all that juice! (20) - Create and consume all mixed drinks in the game.
Finally Full (20) - Eat all types of food in the game.
Having A Gas (20) - Kill 1,000 "special" zombies.
TK's Favorite (20) - Play and win in all 9 TIR events.
Rising Star (20) - Come in first place in a single TIR event.
Tough Guy (20) - Collect all combo cards from psychopaths.
Half Deck (20) - Collect 25 combo cards.
Win Big! (20) - Finish in first place in a TIR episode.
Custom Finish (20) - Give your bike a custom paint job.
Curiously Inventive (20) - Collect all combo cards hidden in Fortune City.
Life Saver (20) - Collect all survivor combo cards.
Full Deck (20) - Collect all combo cards.
Data Miner (20) - Fill all entries in the notebook.
Smashy (20) - Smash 100 zombies using the Smash skill move.
Stick 'em up (20) - Stick it to a zombie by covering him in weapons and objects!
The Skill To Survive (20) - Tame Snowflake.

Additionally, there is one secret achievement:

Tape it or DIE! (20) - Discovered the secret combo card. Did you cheat by checking online?

Additionally, there are twelve Case Zero achievements:

A Taste of Things to Come (10) - Build a combo weapon.
A bigger taste... (20) - Build all available combo weapons.
Chop Shop (20) - Defeat Jed the Mechanic.
Clueless No More (10) - Purchase a clue from Dick, the pawnshop owner.
Ready to Ride (20) - Rebuild the bike.
Small Town, Deep Pockets (20) - Spend $100,000 in the pawnshop.
Locksmith (20) - Unlock all the doors in Still Creek.
Part Way There (10) - Find and return a bike part.
Still Creek Savior (20) - Save all the survivors in Still Creek.
We Ride To Fortune City! (20) - Escape Still Creek with Katey.
Zombie Exterminator (20) - Kill 1,000 zombies.
Zombie Hunter (10) - Kill 100 zombies.

Additionally, there are twelve Case West achievements:

Amateur Photography (10) - You took your first picture. Ain't it pretty.
Double the Fun (20) - You completed Dead Rising 2 - CASE WEST with a co-op friend. Must be nice to have a friend.
Petty Vandal (20) - You destroyed all security cameras in a single playthrough. Lights out for Phenotrans.
Fantastic (20) - You completed Dead Rising 2 - CASE WEST. Frank West would be proud.
Handy Man (20) - You created all the new combo weapons in Dead Rising 2: CASE WEST. Duct tape, to the max!
Phenotrans Nuisance (10) - You killed 20 Security Guards. What did they ever do to you?
Phenotrans Sabotage (10) - You killed 5 Hazard Units. Looks like working there was hazardous to their health.
Phenotrans Bubble Burster (10) - You killed 10 Zombie Handlers. Looks like they couldn't handle you.
Savior (20) - You saved all survivors in a single playthrough. Really? Even after all Phenotrans did to you.
Professional Photography (20) - You took a picture of all the PP Stickers. You've got a good eye.
Ultimate Power! (20) - You got to level 50. Can you feel the power?
Zombie Hunter (20) - You killed 1000 zombies. Is that it?

Case Zero: Easy $1500 on a Slot Machine
In the casino, there is a slot machine with a cow on it, put in $100 dollars to gamble and you will always win the first 5 times.

Unlock Knight's Armour Set
When all 4 pieces are equipped Chuck's health is doubled, however if his health falls below 50% the armour will shatter leaving Chuck in his underwear and his health restored to normal:

Knight's Armour - Finish the game obtaining the S ending.
Knight's Boots - Buy for $2 million from the pawnshop "Moe's Migitations" located on the Platinum Strip.
Knight's Helmet - Rescue Jack in the case "Meet the Family" then win it off him in poker in the case "Ante Up".
Beard - Found at the back of the hairdresser's shop "Wave of Style" located in Royal Flush Plaza.

Easy Money Grinding
At any time in the game after you first make it to the safe house and save your game, go to "quit game" and restart the story. After this DO NOT PRESS START TO SKIP THE CUT-SCENE. This will allow you do do the opening "Slicecycles" sequence again and gain $10,000 for coming in 1st place.

Ending Requirements
Ending A - Do all cases and give Katey Zombrex every time but do not give TK Zombrex before completing The Facts.
Ending B - Give Katey Zombrex every time, starting from case 6-2, let the time pass by until it is 7AM on September 29; do not complete The Facts.
Ending C - Do not do the cases while Giving Katey Zombrex every time. Be in the safehouse before the military arrives.
Ending D - Be outside the safehouse by the time the military arrives.
Ending F - Do not give Katey Zombrex and be in the safehouse by the time the military arrives.
Ending S (True ending) - Do all cases and give Katey Zombrex every time, give TK Zombrex before completing The Facts.

Skip the Opening Gameplay Sequence
If you skip the opening cinematic, you will also skip the "Terror Is Reality" gameplay section and the subsequent gameplay section all the way up to arriving at the emergency bunker.

Unlock Clothes
Champion's Jacket - Win a TIR episode (be the overall top player by the end).
Convicts - Kill 10 psychopaths.
Tattered Clothes - Kill 1,000 zombies using hand to hand.
Hockey Mask - Use every melee weapon on zombies.
TIR Outfit - Earn $5,000,000 in TIR Online.
TIR Helmet - Earn $1,000,000 in TIR Online.
Waitress Oufit, Bowling Shirt, Hunting Jacket, and Overalls - Start a game by importing a Case Zero file.
Willemette Mall Costume - Rescue 50 survivors.

Magazine Duplication
To do this you need at least one other player. Start up a save and grab a magazine you would like to duplicate. Now have your other player do the same in their own game. Both save the game. Player B joins Player A and drops the magazine and leaves the game. Player A saves the game. Now Player A has two copies of the magazine! You can do this over and over again to get up to twelve of the same type.