Maybe we should get the Natural research facility after all.... I mean, some of this stuff is _awesome_
Short monster guide:
After your village gets the Natural Research Facility, monsters will sometimes attack your village. Each time you fight a monster during the day, it costs more and more Stamina, but the payoff can be pretty rewarding!
However, not beating the monster in 7 days costs everyone in your village 30 Stamina, the village half of its Ryo, and, if your village is large enough, one of your upgrades. Beating the monster will land your village a secret upgrade. The leader and one other ninja will also receive a special item!
Alchemists
HP: 2300
Stat: Nin Dif: 10
Village Upgrade: Crystal Amplifiers - Start day at max Chakra
Item: Red Water - Recover from bingos twice as fast
Random's count: 2
Bishonen
HP: ?
Stat: Nin Diff: ?
Village Upgrade: Pose Training - +10% Nin AP on regular missions
Item: Perfect Hair - +10% Nin AP on regular missions
Random's count: 2
Cardcaptors
HP: 2500
Stat: Gen Diff: 10
Village Upgrade: +1 Success when spying
Item: Clow Card - +1 Nin Success
Random's count: 3
Console Elitists
HP: 3800
Stat: Nin Diff: 13 + 1 every night after the first
Village Upgrade: Fun Club Memberships - 20% off at the Party House
Item: Money Printer - +25% Ryo
Random's count: 1
Crazed Mimiga
HP: 3100
Stat: Nin Dif: 9
Village Upgrade: Quote and Curly Brace - +40% base chance of finding a resource
Item: Polar Star - +2 Range!!!
Random's count: 2
Demon of the Sand
HP: 3500 + variable HP regen every night
Stat: Tai Diff: 9
Village Upgrade: Sand Demon Monument - Get back 1 stamina per mission
Item (Kage-only): Spirit of the Demon of the Sand - You have the ability to contain the Sand Demon, but it resists... (quest not active yet)
Random's count: 1
Drift Racers
HP: 2500
Stat: Gen Diff: 9
Village Upgrade: Tofu Shop - +20 stamina per day, Drift Mountain costs 0 ryo (Drift Mountain not active yet)
Item: Late-Night Snack - +5000 XP per day
Random's count: 3
Evangelions
HP: ?
Stat: ? Diff: ?
Village Upgrade: LCL - +10 Stamina per day
Item: Plug Suit - +1 Gen Success
Random's count: 1
Fanboys
HP: 1800
Stat: Nin Diff: 10
Village Upgrade: Fanboy Stink Moat - +1 Success needed for Village attacks
Item: Book of Spoilers - +10% Gen AP on regular missions
Random's count: 4
Forum Trolls
HP: 4000
Stat: Gen Diff: 13 +1 each day
Village Upgrade: Forum Mods - 10 less Stamina to Patrol
Item Drop: Troll Account - +5 Range when Attacking Other Villages
Random's count: 1
Giant Cockroach
HP: 1700
Stat: Tai Diff: 9
Village Upgrade: Carapace Walls - Two more successes needed for invaders
Item: Carapace Armor - +1 Nin Strength
Random's count: 2
Go Players
HP: 2100
Stat: Gen Diff: 11
Village Upgrade: Troop Positioning - +1 success needed for village attacks
Item: Go Piece - +10% AP/XP on regular missions
Random's count: 2
J-Rock Bands
HP: ?
Stat: ? Diff: ?
Village Upgrade: Blaring Music - +10% Chance to find Permanent Spies
Item: Groupies - +2 Str against Monsters
Random's count: 1
Magical Girls
HP: 1600
Stat: Gen Diff: 9
Village Upgrade: Magic Academy - +10% Gen AP on regular missions
Item: Magical Wand - +1 Gen Strength
Random's count: 7
Ninja Bears
HP: 1500
Stat: Nin Diff: 10
Village Upgrade: Little Tricycles - -2 Difficulty when spying
Item: Bear Coat - +1 Tai strength
Random's count: 2
Persocoms
HP: 2700
Stat: Nin Diff: 8
Village Upgrade: Robo-Maids - -10% loss to village upkeep
Item: Persocom - +10 stamina per day
Random's count: 1
Pokermans
HP: 2800
Stat: Tai Diff: 8
Village Upgrade: Evolving Defenders - Double defense bonuses on bingos
Item: Pokeballs - +5% find rate
Random's count: 1
Pro Wrestlers
HP: 2900
Stat: Nin Diff: 8
Village Upgrade: Muscle Training - +10% Taijutsu AP on regular missions
Item: Shiny Belt - +2 Levels
Random's count: 3
Psycho Hikers
HP: 4200
Stat: Nin Diff: 13 + 1 every night after the first
Village Upgrade: Hiking Rest Stop - 10 Less Stamina to Collect
Item: Granola Camouflage - +5 Range when spying
Random's count: 1
Robot Monkeys
HP: 1700
Stat: Tai Diff: 10
Village Upgrade: Robot Guards - +2 difficulty when being attacked
Item: Monkey Cymbals - +2 Tai levels
Random's count: 3
Storm Riders
HP: 20000
Stat: Nin Diff: 8 +1 every night
Village Upgrade: Trophaeum Tower - May change Invasion Preparations twice daily
Item: Regalia - +1 Range, +1 Strength, may Attack Villages twice a day
Random's count: 3
Super Saiyans
HP: 2400
Stat: Tai Diff: 7
Village Upgrade: Scouters - +10% chance to find spies
Item: Power over 9000 - +1 Tai Success
Random's count: 3
Vampires
HP: 1500
Stat: Gen Diff: 10
Village Upgrade: Undead Guards +2 Successes needed to spy on your village
Item: Vampire Cloak - +1 Nin strength
Random's count: 7
Zodiac GirlyBoys
HP: 3600
Stat: Tai Diff: 13 +1 every 2nd day
VIllage Upgrade: Zodiac Zoo - +1 Ingredient per Ingredient Hunt
Item Drop: Fruit Basket - Double Ingredients on Ingredient Hunt
Random's count: 0
Short monster guide:
After your village gets the Natural Research Facility, monsters will sometimes attack your village. Each time you fight a monster during the day, it costs more and more Stamina, but the payoff can be pretty rewarding!
However, not beating the monster in 7 days costs everyone in your village 30 Stamina, the village half of its Ryo, and, if your village is large enough, one of your upgrades. Beating the monster will land your village a secret upgrade. The leader and one other ninja will also receive a special item!
Alchemists
HP: 2300
Stat: Nin Dif: 10
Village Upgrade: Crystal Amplifiers - Start day at max Chakra
Item: Red Water - Recover from bingos twice as fast
Random's count: 2
Bishonen
HP: ?
Stat: Nin Diff: ?
Village Upgrade: Pose Training - +10% Nin AP on regular missions
Item: Perfect Hair - +10% Nin AP on regular missions
Random's count: 2
Cardcaptors
HP: 2500
Stat: Gen Diff: 10
Village Upgrade: +1 Success when spying
Item: Clow Card - +1 Nin Success
Random's count: 3
Console Elitists
HP: 3800
Stat: Nin Diff: 13 + 1 every night after the first
Village Upgrade: Fun Club Memberships - 20% off at the Party House
Item: Money Printer - +25% Ryo
Random's count: 1
Crazed Mimiga
HP: 3100
Stat: Nin Dif: 9
Village Upgrade: Quote and Curly Brace - +40% base chance of finding a resource
Item: Polar Star - +2 Range!!!
Random's count: 2
Demon of the Sand
HP: 3500 + variable HP regen every night
Stat: Tai Diff: 9
Village Upgrade: Sand Demon Monument - Get back 1 stamina per mission
Item (Kage-only): Spirit of the Demon of the Sand - You have the ability to contain the Sand Demon, but it resists... (quest not active yet)
Random's count: 1
Drift Racers
HP: 2500
Stat: Gen Diff: 9
Village Upgrade: Tofu Shop - +20 stamina per day, Drift Mountain costs 0 ryo (Drift Mountain not active yet)
Item: Late-Night Snack - +5000 XP per day
Random's count: 3
Evangelions
HP: ?
Stat: ? Diff: ?
Village Upgrade: LCL - +10 Stamina per day
Item: Plug Suit - +1 Gen Success
Random's count: 1
Fanboys
HP: 1800
Stat: Nin Diff: 10
Village Upgrade: Fanboy Stink Moat - +1 Success needed for Village attacks
Item: Book of Spoilers - +10% Gen AP on regular missions
Random's count: 4
Forum Trolls
HP: 4000
Stat: Gen Diff: 13 +1 each day
Village Upgrade: Forum Mods - 10 less Stamina to Patrol
Item Drop: Troll Account - +5 Range when Attacking Other Villages
Random's count: 1
Giant Cockroach
HP: 1700
Stat: Tai Diff: 9
Village Upgrade: Carapace Walls - Two more successes needed for invaders
Item: Carapace Armor - +1 Nin Strength
Random's count: 2
Go Players
HP: 2100
Stat: Gen Diff: 11
Village Upgrade: Troop Positioning - +1 success needed for village attacks
Item: Go Piece - +10% AP/XP on regular missions
Random's count: 2
J-Rock Bands
HP: ?
Stat: ? Diff: ?
Village Upgrade: Blaring Music - +10% Chance to find Permanent Spies
Item: Groupies - +2 Str against Monsters
Random's count: 1
Magical Girls
HP: 1600
Stat: Gen Diff: 9
Village Upgrade: Magic Academy - +10% Gen AP on regular missions
Item: Magical Wand - +1 Gen Strength
Random's count: 7
Ninja Bears
HP: 1500
Stat: Nin Diff: 10
Village Upgrade: Little Tricycles - -2 Difficulty when spying
Item: Bear Coat - +1 Tai strength
Random's count: 2
Persocoms
HP: 2700
Stat: Nin Diff: 8
Village Upgrade: Robo-Maids - -10% loss to village upkeep
Item: Persocom - +10 stamina per day
Random's count: 1
Pokermans
HP: 2800
Stat: Tai Diff: 8
Village Upgrade: Evolving Defenders - Double defense bonuses on bingos
Item: Pokeballs - +5% find rate
Random's count: 1
Pro Wrestlers
HP: 2900
Stat: Nin Diff: 8
Village Upgrade: Muscle Training - +10% Taijutsu AP on regular missions
Item: Shiny Belt - +2 Levels
Random's count: 3
Psycho Hikers
HP: 4200
Stat: Nin Diff: 13 + 1 every night after the first
Village Upgrade: Hiking Rest Stop - 10 Less Stamina to Collect
Item: Granola Camouflage - +5 Range when spying
Random's count: 1
Robot Monkeys
HP: 1700
Stat: Tai Diff: 10
Village Upgrade: Robot Guards - +2 difficulty when being attacked
Item: Monkey Cymbals - +2 Tai levels
Random's count: 3
Storm Riders
HP: 20000
Stat: Nin Diff: 8 +1 every night
Village Upgrade: Trophaeum Tower - May change Invasion Preparations twice daily
Item: Regalia - +1 Range, +1 Strength, may Attack Villages twice a day
Random's count: 3
Super Saiyans
HP: 2400
Stat: Tai Diff: 7
Village Upgrade: Scouters - +10% chance to find spies
Item: Power over 9000 - +1 Tai Success
Random's count: 3
Vampires
HP: 1500
Stat: Gen Diff: 10
Village Upgrade: Undead Guards +2 Successes needed to spy on your village
Item: Vampire Cloak - +1 Nin strength
Random's count: 7
Zodiac GirlyBoys
HP: 3600
Stat: Tai Diff: 13 +1 every 2nd day
VIllage Upgrade: Zodiac Zoo - +1 Ingredient per Ingredient Hunt
Item Drop: Fruit Basket - Double Ingredients on Ingredient Hunt
Random's count: 0