Challenge Quest/List

This is a (nearly) complete list of Challenge Quests in Shin Megami Tensei IV.

Mikado Quests

 * Collect Demon Claws - required - 300 macca, Unlocks Bone Sword in Q's Armory.
 * Gather Some Naraku Lichen - required - Holy Fruit x2
 * The Lion's Roar Within Naraku - required - 1000 macca
 * Chagrin Slaying Competition - 950 macca
 * The Cursed Gauntlet - 1000 macca, Unlocks Fury Ares
 * I want a Classy Down Quilt - 750 macca
 * Slaying the Dragon of the Lake - Azahuya Gray (legs)
 * Operation: Slay the Berserker (NG+) - Azahuya Gray (top)
 * Dance of the Dead - Azahuya Gray (body), Unlocks Fiend David
 * A Drunkard's Best Friend - 750 macca
 * Missing Child Search - Silver Necklace
 * Newcomer's Competition (NG+) - 1000 macca
 * Pluck the Buds of Rebellion (NG+) - Steel Hoe, Unlocks Zealot Ogun
 * Capture the Berserker (demon talk) - Tokkosho, Unlocks Fury Wu Kong
 * Relic Recovery: Small Fridge - 2500 macca
 * Relic Recovery: PC - 2200 macca
 * Relic Recovery: Power Cable - 2200 macca
 * Relic Recovery: Wind Turbine - 2200 macca
 * Bring Back Wine - (listed as a Main Quest, not requierd)
 * Creating Fireproof Clothing - 3450 macca, Unlocks Fire Guard Armor in Q's Armory
 * Isis' Search for the Coffin (demon talk) - St Incense x5
 * Slay the Demon in Hiding (NG+) - Glass Magatama
 * I Require Ample Weaponry - Sword of Hope
 * I'm No Good at Demon Fusion - Mikado Custom
 * Demon-Haunted Man (NG+) - Evil Bazooka
 * Four Wings, Four Heads (NG+) - Jonathan's route - Unlocks Herald Seraph + Famed Tokisada
 * The Deal in the Forest - Summoning Stone x5
 * Preparing for the Day to Come - Great Chakra
 * A Magical Remedy / Magical Medication / 2 Magical Medicines - Black Crest
 * Escorting Your Comrade - 10000 macca
 * Dragon Slaying Competition - Law/Neutral - 13000 macca
 * Taste of the Forbidden Fruit - Law - Unlocks Tyrant Azazel
 * Great Raven of the Underground - Law - Unlocks Herald Mastema

Ueno Quests

 * Eggs for One Hundred - Lu Incense x3
 * I want to Make the City Bright - Business Trip Set (relics)
 * Competition for Blood - relics, Unlocks Demon Sneak Armor
 * Deliver the Film - 2500 macca, Starts Nozomi's & camera quest chains - 2500 macca
 * Slay the Pirate Demons (NG+) - 1900 macca
 * The Secret to Durable Clothing - Valuable Documents (relics), Unlocks Soldier Enma Armor
 * Samurai and Hunters United - Nozomi - Silver Mars
 * Hunter Tournament Prelims - Showdown Ticket
 * Comply with My Mass Order - Miracle Set
 * Quality Food - relics
 * Rebirth of the Lady - Nozomi - requires all Nozomi quests - White King (legs), Unlocks Lady Black Maria
 * Invitation for Angel Hunting - Chaos - 15000 macca
 * The Voice of Arrogant "Evil" - Chaos - requires Invitation for Angel Hunting - Sophia's Sword, Unlocks Vile Demiurge

Shinjuku Quests

 * Corpse Disposal - story requirement - Succulent Pork x1, Unlocks Ghost Dullahan
 * Phantom of Madness - Ma Incense x4
 * Cu Chulainn's Training (demon talk) - Brionac, Unlocks Genma Cu Chulainn
 * Demon Guarding the Shrine - Bushi Tasogare (legs), Unlocks Kunitsu Okuninushi
 * The Malevolent Star Falls - Sleepless Ring (5000 macca)
 * A Grudge from the Streets (NG+) (takes place in Ikebukuro) - Pest Crop
 * Sunset for a Demonnapper (demon talk) - requires Capture the Berserker - Antidote Ring, Unlocks Famed Kanseiteikun, Lady Hariti
 * Excavate Some Coffee Beans - relics
 * Protect the Tower - 5000 macca
 * Help Me Exterminate the Demons (NG+) - a number of foodstuffs (relics)
 * Heavy Weapon Recovery - Golden Gun
 * RxW Smacktacular XIII - 8500 macca
 * Serial Kidnapping + Arson - Nozomi - Green Gunner
 * Prevent a Deal with an Overlord (NG+) - Claymore, Unlocks Tyrant Astaroth
 * Samurai School in Nakano - Black Crest, Unlocks Kishin Marici
 * Multi-Demon Fusion - requires "Serial Kidnapping + Arson" - Great Chakra x2, Unlocks Reaper Cenunnos
 * Excavate Summoning Devices - Requires "Resurrection of the Kousoushin" - Magic Mirror x2
 * Ishtar, the Goddess of the Harvest (NG+) - Chaos - requires "Prevent a Deal with an Overlord" + "Stop a Summoning" + "Resurrection of the Kousoushin"

Shibuya Quests

 * Help Me Get Some Servers - ID Card Lv2
 * Retrieve the Tablet (demon talk) - Dx Incense x6
 * Banquet of Flames - Fire Pillar
 * Hunter Tournament Finals - Hunter Crown, requires Hunter Tournament Prelims
 * A Century of Defense (NG+) - Kutune Sirka, Unlocks Kunitsu Take-Mikazuchi
 * Save the Old Man - 10000 macca, Unlocks Deity Odin, Kishin Thor
 * Mysterious Story of Tennozu - Shinno Rounds, Unlocks Deity Baal
 * Rebirth of the Great Overlord - requires Mysterious Story of Tennozu - 15000 macca, Aquila's Sword, Unlocks Tyrant Beelzebub

Ginza Quests

 * Overcome the Trial - story requirement
 * I will Give You My Black Card - Black Card
 * The Great Drunkenness - Nozomi - Black Gunner
 * Osiris' Resurrection (demon talk) - requires Isis' Search for the Coffin - Balm of Rising x5, Unlocks Deity Osiris, Lady Isis (Osiris will join the party)
 * Find the Tears of the Messiah - Incense Set
 * Wish of a Professional - Magic Stone Set A
 * Tokyo Cosmos - Neutral only - ID Card Lv3 (this in turn unlocks the chance to find, defeat, and fuse Fiend Red Rider)

Blasted Tokyo Quests

 * The Poisonous World - a number of odds and ends (relics)
 * Food to Survive Tomorrow - 3000 macca
 * Catch the Sake Thief (NG+) - a number of odds and ends (relics)
 * The Only Food Source - Great Chakra x2
 * Help Us Get Some Fuel - Chakra Pot x5
 * Help Us Transport a Cannon - 10000 macca
 * Death on Wings (NG+) - Pluto Corpse x3
 * Defeating the Demon (Listed as a Main Quest but not required) - Unlocks Reaper Ixtab
 * Naglfar Material Collection (demon talk) - Black Clown (head)
 * Yomotsu Okami's Revenge (NG+) (demon talk) - Skull Scepter, Unlocks Megami Izanami

Infernal Tokyo Quests

 * Pleasure Box - Infernal Kasumigaseki
 * Stop a Summoning - Infernal Shibuya - Plutonium Rounds
 * Demon Battle Royale - Infernal Ikebukuro
 * Tokyo Bay Mixer (demon talk) - Soma x2
 * Slay the God of Violent Winds (NG+) (demon talk) - Agent Y (legs)
 * Escape from Philanthropy (NG+) (demon talk) - Heated Soul, Unlocks Fury Kartikeya
 * Punishing the Trickster (demon talk) - Mortal Knife
 * Errand for the Apocalypse (demon talk) - Peacemaker

Other

 * Training Battle -(Burroughs adds these as the story progresses. There are 10 of them.) - Macca
 * Chance Meeting with a Saint- Simply fuse Herald Metatron to complete this quest.
 * Shelter Inspection - Shinjuku camera quest - Olive Camouflage (head)
 * Her Memories - Shinjuku camera quest - Ag Incense x5
 * Ikebukuro Free District - Shinjuku camera quest - 5000 macca
 * Take a Picture of Ginza for Me - Ginza camera quest - 6250 macca

Demon Talk

 * Capture the Berserker - Tokkosho, Unlocks Fury Wu Kong
 * Isis' Search for the Coffin - St Incense x5
 * Cu Chulainn's Training - Brionac, Unlocks Genma Cu Chulainn
 * Sunset for a Demonnapper - requires Capture the Berserker - Antidote Ring, Unlocks Famed Kanseiteikun, Lady Hariti
 * Retrieve the Tablet - Dx Incense x6
 * Osiris' Resurrection - requires Isis' Search for the Coffin - Balm of Rising x5, Unlocks Deity Osiris, Lady Isis (Osiris will also join the party)
 * Naglfar Material Collection (Blasted Tokyo) - Black Clown (head)
 * Tokyo Bay Mixer (Infernal Tokyo) - Soma x2
 * Slay the God of Violent Winds (NG+) (Infernal Tokyo) - Agent Y (legs)
 * Escape from Philanthropy (NG+) (Infernal Tokyo) - Heated Soul, Unlocks Fury Kartikeya
 * Resurrection of the Kousoushin - Torifune's Shawl, Bead of Life x2, Unlocks Amatsu Amaterasu
 * The Cauldron - Excalibur
 * Recreating the Human Race - Amrita Set
 * Yomotsu Okami's Revenge (NG+) (Blasted Tokyo) - Skull Scepter, Unlocks Megami Izanami
 * Punishing the Trickster (Infernal Tokyo) - Mortal Knife
 * Errand for the Apocalypse (Infernal Tokyo) - Peacemaker

NG+ Challenge Quests

 * Operation: Slay the Berserker (K's Tavern) - Ahazuya Gray (body)
 * Newcomer's Competition (K's Tavern) - 1000 Macca
 * Pluck the Buds of Rebellion (K's Tavern) - Steel Hoe, Unlocks Zealot Ogun
 * Slay the Demon in Hiding (K's Tavern) - Glass Magatama
 * Demon-Haunted Man (K's Tavern) - Evil Bazooka
 * Slay the Pirate Demons (Ueno) - 1900 Macca
 * A Grudge from the Streets (given in Shinjuku, takes place in Ikebukuro East) - Pest Crop
 * Help Me Exterminate the Demons (Shinjuku) - a number of foodstuffs (relics)
 * Prevent a Deal with an Overlord (Shinjuku) - Claymore, Unlocks Tyrant Astaroth for Special fusion
 * A Century of Defense (Shibuya) - Kutune Sirka, Unlocks Kunitsu Take-Mikazuchi for Special fusion
 * Four Wings, Four Heads (K's Tavern) - Jonathan - Unlocks Herald Seraph + Famed Tokisada
 * Catch the Sake Thief (Blasted Tokyo) - a number of odds and ends (relics)
 * Death on Wings (Blasted Tokyo) - Pluto Corpse x3
 * Slay the God of Violent Winds (Infernal Tokyo) (demon talk) - Agent Y (legs)
 * Escape from Philanthropy (Infernal Tokyo) (demon talk) - Heated Soul, Unlocks Fury Kartikeya
 * Yomotsu Okami's Revenge (Blasted Tokyo) (demon talk) - Skull Scepter, Unlocks Megami Izanami
 * Ishtar, the Goddess of the Harvest (Shinjuku) - Chaos - requires "Prevent a Deal with an Overlord" + "Stop a Summoning" - unlocks Megami Ishtar to accompany your party (optional), Lady Asherah,Fiend Mother Harlot for Special fusion

Alignment Choices

 * Slaying the Dragon of the Lake - "beasts to be slain" +1 / "holy spirits" -1
 * Pluck the Buds of Rebellion (NG+) "society needs rules" +1 / "it is ridiculous" -1
 * Demon-Haunted Man (NG+) - "finish her" +1 / "let her go" -1
 * Hunter Tournament Prelims - each opponent spared +1 / each opponent killed -1
 * Sunset for a Demonnapper (demon talk) - "let them go" +1 / "make them pay" -1
 * Banquet of Flames - "talk more" +1 / "force them" -1
 * Hunter Tournament Finals - each opponent spared +1 / each opponent killed -1
 * Magic Medicines - "A Magical Remedy" (life saving) +10 / "Magical Medication" (euthanize) -10