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