Here is the full list of all 51 Dead Rising 2: Off The Record trophies - there are 44 bronze, 3 silver, 3 gold and 1 platinum.
You have acquired all the trophies in Dead Rising 2: Off the Record
Get a Gold medal on all co-op challenges.
Get at least a Bronze medal on all co-op challenges.
Photograph 75 PP stickers.
Photograph 25 PP stickers.
Kill 100,000 zombies.
Have Denyce attack and damage Sgt. Boykin.
Get at least a Bronze medal on 10 different co-op challenges.
Defeat 5 psychopaths in Co-op.
Take a picture of your co-op partner during Co-op play.
Don't consume any meat, dairy or alcohol until the military arrives.
Get 8 survivors into a vehicle.
Restore power to the Yucatan Casino.
Get a Gold medal on all single-player challenges.
Save a damsel in distress for the third and final time.
Defeat the mastermind of the Fortune City incident.
Destroy a "harvester."
Save the damsel in distress a second time.
Take a photo of a survivor in a very dramatic situation.
Avert a mutiny.
Rescue a damsel in distress from the Twin Terrors.
Unlock all skill moves.
Unlock the secret shortcut.
Have Snowflake attack and damage a psychopath.
Collect 50 combo cards.
Defeat the motorcycle-riding psychopath.
Get a survivor drunk.
Take a dose of Zombrex.
Get at least a Bronze medal on all single-player challenges.
Get back in the game by gaining lots of PP from pictures.
Fill your camera's memory.
Take a picture with elements of horror, brutality, outtake and erotica in a single shot.
Kill 12,345 zombies.
Get over 2,000 PP from a single zombie kill.
Get at least a Bronze medal on 10 different single-player challenges.
Have a zombie slip in a puddle of vomit.
Use the Snapshot skill move on a zombie.
Use the Jump Kick to knock down 100 zombies.
Collect 20 combo cards.
Kill 1337 zombies.
Visit 10 different maintenance rooms.
Take a picture of a psychopath.
Photograph a PP sticker.
Play a carney game and win.
Take a high PP value picture.
Take an extremely erotic picture.
Use the amusement park rides to kill 10 zombies at once.
Dress up completely in women's clothing.
Build one of the combo weapons new to Dead Rising 2: Off the Record.
Kill 69 zombies.
Get a medal on a challenge in Sandbox Mode.