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