A METAL SLUG DEFENSE & THE BATTLE CATS Collaboration Event Begins!
The tower defense titans come together for one special event!
Pixelated warriors, ready for a fierce fight!

Metal Slug Defense (メタルスラッグ ディフェンス Metaru suraggu difensu) is a strategy, tower defense game developed and published by SNK Playmore for Android and iOS devices, has collaboration events with both The Battle Cats and Nyanko Daisensou. Event started October 6th, 2015.


  • Pre-Event Bonus

Login each day to collect a special gift before the event begins:

・September 29th: Cat CPU +1 (Japanese Version only)
・September 30th: Speed Up +1
・October 1st: XP +25000
・October 2nd: Silver Ticket +1
・October 3rd: Sniper Cat +1
・October 4th: Rich Cat +1
・October 5th: Treasure Radar +1
  • Limited Edition Metal Slug Capsules

For a short time, get Metal Slug units from the special Event Capsules!

The 16-bit heroes of Metal Slug battle in the Cat Empire!

Get all the Metal Slug heroes from the Rare Capsules! 11 limited edition units to collect!

*All Metal Slug units have a set chance of appearing as a drop from the Event Capsules during this event. Metal Slug units may not be acquired from Rare Capsules outside of the Event Capsules screen. Make sure that you have tapped the Metal Slug Defense campaign icon at the top of the Rare Capsules screen before you attempt to acquire Event Units.
*First Time and Guaranteed capsule campaigns do not apply to the Metal Slug Defense Event Capsules.
*If Metal Slug Defense Rare Capsules do not appear in your Battle Cats application, please update to the most recent version and reboot the app.
Rarity Character's Name
Rare Marco (マルコ Maruko)
Rare Tarma (ターマ Tāma)
Rare Eri (エリ Eri)
Rare Fio (フィオ Fio)
Rare Mars People (マーズピープル Māzu pīpuru)
Super Rare Allen O'Neil (アレン・オニール Aren onīru)
Super Rare SV-001
Uber Rare Huge Hermit (ヒュージハーミット Hyūji hāmitto)
Uber Rare Jupiter King (ジュピターキング Jupitā kingu)
Uber Rare Donald Morden (モーデン元帥 Mōden gensui, Morden Marshall)
Uber Rare Hi-Do (ハイドゥ Hai dou)
  • Collaboration Stages in Battle Cats

A whole platoon of Metal Slug heroes, ready for a fierce fight!

The weirdly cute Cats go head to head with Metal Slug heroes!

Take on the SNK favorites as tough enemies with your mighty Cats!

*If Metal Slug Defense collaboration stages do not appear in the Battle Cats application, please update to the most recent version and reboot the app.

List of Levels

Metal Slug Defense

Metal Slug Defense (メタルスラッグディフェンス)

Beat the stages with speed to get awesome score rewards!

*Check the Timed Score button on the map to see what rewards are available for each stage.

You'll have a chance to unlock the Metal Slug Defense unit HYAKUTARO upon clearing any stage in the Metal Slug Defense maps. More difficult stages will give you a bigger chance of unlocking the unit!

Once acquired, activate "HYAKUTARO" from the Special Cats section of the Upgrade screen.

Also: Clear all the stages to get a one-time reward of 30 Cat Food!

English Version name Japanese Version name
Stage 1 Immortal Allen O'Neil オニ軍曹 アレン・オニール
Stage 2 Attack on Huge Hermit 進撃のヒュージハーミット
Stage 3 Jupiter King Convoy ジュピターキングの護衛

Super Metal Slug Defense

Super Metal Slug (超メタルスラッグディフェンス)

Take on a Hard+++ challenge!

Take on the challenge by visiting "Stories of Legend" (Event Stages) from the title screen of The Battle Cats. By tapping Battle, you will be able to find the Metal Slug Defense stages.

English Version name Japanese Version name
Stage 1 Devils on the Doorstep (Hard+++) デビルリバース・モーデン 超激ムズ


Japanese Version

  • October 6th, 2015 to November 4th, 2015 (10:59)

English Version

  • October 6th, 2015 to November 4th, 2015 (10:59)
  • Novemebr 1st, 2017 to November 15th, 2017


  • This collab was most likely brought back thanks to the release of Metal Slug Attack Metal slug defenses' sequel.


External Links

Collaboration Event Stages (BCJP 9.1)
Hometown Self-Defense Force Suddenly 2nd ClassChiefShattered SergeantYorudemo SergeantKakeashishi LieutenantJeji MajorColonel EnyacolaHead of Staff
Princess Punt Enchanted Princess How to Cook YuurinchiiYou Lynch!High Heels and ChamomileLet's Go To The EggPrincess's SecretPrincess Battle
Princess Punt Stages Kerihime is Here! (Easy)Kerihime is Here! (Normal)Kerihime is Here! (Hard)
Kerihime Awakens Road to Kerihime Evolution (Expert)Road to Kerihime Evolution (Insane)
Sleeping Beauty Awakens Road to Sleeping Beauty Evolution (Expert)Road to Sleeping Beauty Evolution (Insane)
Google Android Message from the Dawn(?) ArchitectureCloud ServiceStorage ServerOn-DemandHypermedia CreatorInti RaymiHaute CoutureSata Andagi
Droid Awakens! ParaDroid (Expert)ParaDroid (Insane)
Million Arthur One Million StoriesSwordsman CastleThe Fate of BritainA Place of SkillExcaliburMagic SchoolThe Birth of the True KingBeef Bowl and Snake Meta
Dragon Poker Beginning of the DockingReal-time BattleShout FestivalBan ColiseumRookie League5vs5Super-combinedBreaker Crash
Final Boss Advent!? キタ---(゚∀゚)---!!
Merc Storia Confrontation! Merc Storia CatHealer's JourneyMonster PhobiaMysterious Bottled Beautiful GirlSuppression of CatsLost MemoryKizuna Spun In Love300 Yards of Hitofuri
Hell of Merc Storia Super Flames (Insane)
Counterattack of Merc Storia Aroisu, A Flying Fight!Kooneria, Heavenly Visitor!Harushuto, A Silver Beast at Dawn!
Warlock Awakens! Road to More Warlock Evolution (Hard+)Road to More Warlock Evolution (Hard+++)
Merc Awakens! Road to Merc Evolution (Expert)Road to Merc Evolution (Insane)
Titi Awakens! Road to Titi Evolution (Expert)Road to Titi Evolution (Insane)
Mysterious Merc Storia Those Who Were Given WingsA Girl Called The Holy WingsDevil's Ritual
Dragon League 20-to-20Cat BattleNyanko Coliseum
Kishidan Shiratori ShochikuHoshi GuranmanieSaionji HitomiSaotome HikaruAyanokōji ShōSuper Clash!! Kishidan!!
Survive! Mola Mola! Squid BenderMean Morning SunbeamsLife Ain't Easy, Kid
Yakuza Apocalypse Polar Road CatsIf You Bite, Everyone YakuzaThe Decisive Battle of the Great War! !
Annihilation City Chapter 1 Shōmetsu kara hajimaru monogatariHakobi-ya TakuyaNazo no shōjo
Chapter 2 GOOD CATS, BAD CATSMendōna neko tte omottadesho?Nyanko keikaku
Chapter 3 Lost (Hard+++)
Takuya & Yuki Awakens! Road to Takuya and Yuki Evolution (Expert)Road to Takuya and Yuki Evolution (Insane)
The Lost World Mōhitori no shōjoNarenareshiku namae o yobanaideSubete no sekai ga owaru
Monster Hunter Monster Hunter stages Kedakaki joō Rioreia (mura)Sora no ōja Rioreusu (kai)Hokori takaki saikyō fūfu! (Jōi)
Monster Hunter Ticket Chance! Joō, kōrin su (kai)Hekiraku ni mieshi, sora no ōja! (Jōi)Sora to riku no hiryū o kare! (G-kyū)
Metal Slug Defense Metal Slug Defense stages Immortal Allen O'NeilAttack on Huge HermitJupiter King Convoy
Super Metal Slug Devils on the Doorstep (Hard+++)
Yurudora A New Mythology BeginsImperial City BardiaThe Backlash of the GodsValhalla BattleNYA GURAROKU!? The End Of Arrival?
Castle & Dragon Castle & Dragon Castle & Dragon and CatsBecause It Is a NinjaRunning Through The BattlefieldTrouble Talking To Girls...Pretend to WatchTraditionFor Pretty CatMucha! I'm Going To Make It!
Castle & Dragon Awakes! Stages Road to Swordsman EvolutionRoad to Horsemen Cavalry EvolutionRoad to Ashura EvolutionRoad to Battle Balloon EvolutionRoad to Dragon Rider EvolutionRoad to Pretty Cat EvolutionRoad to Cyclops EvolutionRoad to Golem Evolution
Immortal Castle & Dragon League Lifting (Expert)Things Born From Eggs (Insane)Castle&Dragon Great War (Deadly)
Nebaaru-kun and Nyan Puzzle Protecting with Cat PuzzleI'll Protect You Too Nebaaru-kunTogether Protecting Cats
Neo Mushroom Garden Fungal DominanceKing of the TableFunghi Wasn't Built In a Day
Y! Mobile Fute sugita nekoSarani futeru neko
Madoka Magica Puella Magi Madoka Magica Make A Contract With MeBecome a Magical GirlYou Can Change Fate ItselfI Don't Understand YouDo You Intend To Be a God?
Witch's Labyrinth The Rose Garden Witch (Easy)The Rose Garden Witch (Veteran)
Witch's Labyrinth The Dessert Witch (Normal)The Dessert Witch (Expert)
Witch's Labyrinth The Box Witch (Hard)The Box Witch (Insane)
Walpurgisnacht The Stagebuilding Witch (Deadly)
A Fake Mitakihara The Nutcracker Witch (Veteran)The Nutcracker Witch (Merciless)
Cat Busters A World With Only CatsStolen Time MachineChasing The Mouse
Pikotaro PPAP
Nazousagi A World controlled by PuzzlesObsessed with PuzzlesPuzzles VS SophismsFour Heavenly Kings of PuzzlesResolved by Physical Attack
Crash Fever Gate of ALICE Virus of LoveExplosive EscapeOrder/Disorder
Moonlit City Converging RaysFever Time!World War ALICE
Gudetama Gudegude-ing Yuderu mo yoshiYaku mo yoshiNama no mama demo yoshi
I can eat anything Shigarami ga ōiAntei shikōOhayōgozaimasen
Street Fighter V: Arcade Edition Street Fighter (Easy) Warrior of NatureIlluminating FlameRush & BlazeBONUS STAGEBlue JadeIron CycloneImpregnable FortressInvincible Fist
Street Fighty (Normal) Illuminating FlameIron CycloneBlue JadeBONUS STAGERush & BlazeWarrior of NatureInvincible FistImpregnable Fortress
Street Fighter (Hard) Iron CycloneImpregnable FortressRush & BlazeBONUS STAGEIlluminating FlameBlue JadeInvincible FistWarrior of Nature
New Challenger Master of the Fist (Veteran)Sekia Goshoha (Deadly)
Tokyo Skytree New Challenger Sorakara (Easy)From Now On (Easy)I'll Try! (Easy)
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