20 Adult ContentTake an extremely erotic picture.
20 Alpha Vs. OmegaHave Denyce attack and damage Sgt. Boykin.
20 Award-Winning PhotographyPhotograph 75 PP stickers.
20 Best of FriendsDefeat 5 psychopaths in Co-op.
20 BFFUse the Snapshot skill move on a zombie.
20 Camera CrazyTake a picture of a psychopath.
20 Card ArchiveCollect 50 combo cards.
20 Card CollectionCollect 20 combo cards.
20 Challenge AddictGet at least a Bronze medal on 10 different single-player challenges.
20 Challenge DominationGet a Gold medal on all single-player challenges.
20 Cramped QuartersGet 8 survivors into a vehicle.
20 DominoesUse the Jump Kick to knock down 100 zombies.
20 Drugged UpTake a dose of Zombrex.
20 Elite KillerKill 1337 zombies.
20 Even More Help From My FriendsGet a Gold medal on all co-op challenges.
20 Frank West: Cross-dresserDress up completely in women's clothing.
20 Full CameraFill your camera's memory.
20 Hands of DoomUnlock all skill moves.
20 Help From My FriendsGet at least a Bronze medal on 10 different co-op challenges.
20 I Got a Medal!Get a medal on a challenge in Sandbox Mode.
20 Luggage CodeKill 12,345 zombies.
20 Maintaining the CityVisit 10 different maintenance rooms.
20 Making MemoriesTake a picture of your co-op partner during Co-op play.
20 Mixed MessagesTake a picture with elements of horror, brutality, outtake and erotica in a single shot.
20 More Help From My FriendsGet at least a Bronze medal on all co-op challenges.
20 New HotnessBuild one of the combo weapons new to Dead Rising 2: Off the Record.
20 Nice ShotPhotograph a PP sticker.
20 No Zombies in the VentsUnlock the secret shortcut.
20 Out With the OldDefeat the motorcycle-riding psychopath.
20 Party TimeGet a survivor drunk.
20 Photo AlbumPhotograph 25 PP stickers.
20 Photo SchoolTake a high PP value picture.
20 PhotojournalistGet back in the game by gaining lots of PP from pictures.
20 Powered UpRestore power to the Yucatan Casino.
20 Prestigious PPGet over 2,000 PP from a single zombie kill.
20 Prom NightKill 69 zombies.
20 Puking RallyHave a zombie slip in a puddle of vomit.
20 Purewal Memorial CupDon't consume any meat, dairy or alcohol until the military arrives.
20 Raw EmotionTake a photo of a survivor in a very dramatic situation.
20 Safety Check: FailedUse the amusement park rides to kill 10 zombies at once.
20 Save the GirlRescue a damsel in distress from the Twin Terrors.
20 Save the Girl... AgainSave the damsel in distress a second time.
20 Save the Girl... Yet AgainSave a damsel in distress for the third and final time.
20 Six Digits?!?Kill 100,000 zombies.
20 Team PlayerAvert a mutiny.
20 Technological TerrorDestroy a 'harvester.'
20 The Challenge ExperienceGet at least a Bronze medal on all single-player challenges.
20 Tiger TamerHave Snowflake attack and damage a psychopath.
20 True ColorsDefeat the mastermind of the Fortune City incident.
20 We Have a Winner!Play a carney game and win.