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Hearts of Darkness (Merciless) is one of the Continuation Stages that the player can access after beating An Elder Secret (Merciless), the first stage in Growing Strange. Completing this stage yields an Elder Catfruit Seed, or on rare occasions, an Elder Catfruit.

Battleground

  • At the beginning, a Dark Otter and a Tackey will spawn. Nothing else will spawn until the enemy base takes damage.
  • When the enemy base reaches 99% HP, it will spawn up to 2 Doge Darks, 2 Tackeys, 6 Shadow Boxer Ks, 5 Dark Otters and 1 Razorback. Once they are killed, nothing else will spawn.

Strategy

If you plan on completing this stage whenever it comes up, you need to have Bombercat, Rodeo Cat or something similar in the lineup; that, and someone good for crowd control or damage are all that's needed specifically for this stage; as for the Tackeys, you can either lure everyone else close to your base by isolating your first bunch of units, stall them near the base while the Tackeys approach and then kill Razorback ASAP, or you can use the length of the stage to "tank" the pushback caused by the Tackeys and kill Razorback afterwards. Once Razorback is dead, you have basically won.

Strategy 2 (Continuation)

Steps:

  1. Lure the Dark Otter close tho the base and begin meatshielding (Only Dual Erasers) along with 1 Pizza, then wait for the Dark Otter to die and stop meatshielding1. Save your money and upgrade your Worker to MAX (dont worry, nothing else will spawn).
  2. Once you have all the money you might need, send 00 first, then wait for tackey to get knockbacked and send the rest of units.
  3. Once the base is triggered, fire the cannon (or save it for the Razorback) and here's where things get difficult; if your pizza is strong enough and he makes lots of shockwave,s Razorback might lately, but if it doesnt then probably you should hypermax/full talent your Pizza in order to win the stage. Sorry.

Notes:

  1. Heres where 2 things can happen, or your Pizza survives/avoids the hit from Tackey or he gets constantly knockbacked and he dies. If the first thing happens, then you are not going to be able to save your money, but instead if your Pizza dies, you can save your money and upgrade your Worker to MAX.

Trivia

  • Prior to version 8.0, Razorback was buffed to 150% instead of 100%, there were 11 Shadow Boxer Ks instead of 6, and the boss fight included a third Tackey that spawned 33.3 seconds after the first 2.

Reference

Special Stages
Daily Stages
Normal Stages Monday Stage (Rich Cat) • Tuesday Stage (Speed Cat) • Wednesday Stage (Cat Jobs) • Thursday Stage (Sniper Cat) • Friday Stage (Helpful Cat) • Weekend Stage
Blitz Stages Monday Blitz StageTuesday Blitz StageWednesday Blitz StageThursday Blitz StageFriday Blitz Stage
Guerrilla Stages
Cat Ticket Guerrilla Love, Metal Hippoe (Hard)Super Metal Hippoe (Expert)Steel Visage (Deadly)Forged to Kill (Deadly)
XP Guerrilla XP StagesXP Megablitz!XP ColosseumMerciless XP!
Catfruit Guerrilla Growing Green (IIIIII) • Growing Purple (IIIIII) • Growing Red (IIIIII) • Growing Blue (IIIIII) • Growing Yellow (IIIIII) • Growing Strange (IRedFloatingBlackAngelAlienMetalZombie) • Catfruit JubileeCatfruit Buffet
Material Guerrilla Cavern of Comets (IIIIII) • Island of Ash (IIIIII) • Strait of Wings (IIIIII)
Cyclone Stages
Solo Fights Tier 1 Attack on R-CycloneAttack on B-CycloneAttack on W-CycloneOncoming Maelstrom
Tier 2 Attack on TitaniumBlack Hole RisingOncoming StormUnholy Tempest
Tier 3 The Wormhole Opens
Tier 4 Charybdis' Mouth
Dual Fights Bad to Worse (Tragedy in Red (Insane)Doom Paradise (Insane))
Day of Judgement (Explosion in the Sky (Insane)Acts of Cat-God (Insane))
Techneurosis (Nuts 'n' Bolts (Insane)Space is the Place (Insane))
Advent Stages
No Plan A (Deadly)Realm of Carnage (Deadly)Honey Trap (Deadly)Parade of the Dead (Deadly)N-1 Grand Prix (Deadly)Bombergirl (Deadly)Puffer Planet (Merciless)獄楽浄土 超極ムズ
Crazed Cat Stages
Crazed Cats Dark Souls (Insane)Absolute Defence (Insane)Berserk (Insane)
Festival Gross (Insane)Head Shaker (Insane)Flappy Cat (Insane)
Fish Hell (Insane)Mammals? (Insane)Crazy Cats (Insane)
Manic Cats Deathhawk (Deadly)Vulcanizer (Deadly)Unjust War (Deadly)
Muscle Party (Deadly)Lots O' Lion (Deadly)Forest Beasts (Deadly)
Ogre Island (Deadly)Draconian (Deadly)Resident Feline (Deadly)
Crazed Moneko in JAPANin LONDONin NEW YORKin THE MOON
Clan of the Maniacs The Wild Dance (Deadly)Insane Rhythms (Merciless)
Awakening Stages
Buyable Cats Actress AwakensKung Fu AwakensMr. AwakensBondage AwakensDom Awakens
Box Cats AwakensPanties AwakensTricycle AwakensNinja AwakensZombie Awakens
Samurai AwakensSumo AwakensBoogie AwakensSkirt Awakens
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Other Cats Kart AwakensFlower AwakensCatburger AwakensNekondo Awakens
Monthly Event All-Stars Stages
Special Thanks! (Insane)Ultra Stress! (Insane)Miracle Tactics! (Insane)Wonderful Conquest (Insane)Elite Corps (Insane)Megaton Blast (Insane)Presents of Mind (Insane)
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Year's First Dawn • Happy Birthday (IIIIII) • 3rd Anniversary Birthday Presents20 Million Downloads Special Gift!Sender Unknown40M Celebration Gifts Galore!CAT DAY
Region Restriction
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Unknown Schedule
Dark Descent I: Eastern Cave • II: Western Walk • III: Southern Fort • ∞: Northern Crater
Seeing Red I: Sands of the East • II: Wastes of the West • III: Peaks of the South • ∞: Ruins of the North
Duel Stages VanguardEliteCommander
Deadly Carnival Tornado Carnival (Deadly)Awakened Carnival (Deadly)
Deadly Carnival II Tornado Carnival II (Deadly)Awakened Carnival II (Deadly)
Deadly Carnival III Tornado Carnival III (Deadly)Awakened Carnival III (Deadly)
Heavenly Tower Floor 1Floor 2Floor 3Floor 4Floor 5Floor 6Floor 7Floor 8Floor 9Floor 10

Floor 11Floor 12Floor 13Floor 14Floor 15Floor 16Floor 17Floor 18Floor 19Floor 20
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LEVEL 31 • LEVEL 31 • LEVEL 32 • LEVEL 33 • LEVEL 34 • LEVEL 35 • LEVEL 36 • LEVEL 37 • LEVEL 38 • LEVEL 39 • LEVEL 40
LEVEL 41 • LEVEL 42 • LEVEL 43 • LEVEL 44 • LEVEL 45 • LEVEL 46 • LEVEL 47 • LAST LEVEL

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The Battle Cats POP! Poppin' in 3D!Fight your Friends!Player VS PlayerPay Only Once!No I-A-P!Get Those UbersConquer the GalaxyAt Nintendo eShop!
BitSummitBCJP Only Held in Miyako Messe! (2016)Held in Miyako Messe! (2017)Held in Miyako Messe! (2018)One more thing... (2018)Held in Miyako Messe! (2019)One more thing... (2019)
The Battle Cats Together! Play Battle Cats Together!Team Up & Win!Over 350 Cats!Play All you Want!Legend Stages Too!Minigames Galore!At the Nintendo eShop!But the App's Fun Too :)
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