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Nyanko Defense Force (にゃんこ防衛軍), also known as Battle Cats Galaxysource, was a LINE QUICK GAME. Developed by PONOS and Game Closure. LINE ended support for this game as of 30/10/2020, meaning that it can no longer be played.


Nyanko Defense Force was a vertical scrolling shoot 'em up game featuring popular characters from "The Battle Cats". The cats flew to space to protect the stars to perform an arcade-style battle, destroying incoming aliens one after another.
Taking advantage of the features of the HTML5 messenger in the game, you could challenge even more powerful bosses by forming a group together with friends. There was no energy system, so you were able to play as many times as you want.
This game was exclusively for smartphones and could not be played on a PC.
This game was completely free to play, but be aware that there were in app purchases.

In this game, you played as a Cat that was a captain of a spaceship destroying spaceship versions of recognizable and exclusive enemies.


Known Initially

There were 7 key features:

  • Start Battle 「タップして戦問開始」: The main function of the game, just tap the screen to start a battle!
  • Member Formation 「降員編成」: The area where you were able to select two units to help support you in battle against the enemies! There were certain typings to certain support units.
    • Flame - Weak against Water.
    • Light - Weak against Dark.
    • Grass - Weak against Flame.
    • Dark - Weak against Light.
    • Water - Weak against Grass.
  • Raid Boss 「レイドボス」: You could battle against strong raid bosses that had an extreme amount of health, and deal as much damage as possible to earn rewards.
  • Shop 「ショップ」: Buy in-game items with LINE's own currency to make battling easier.
  • Ranking 「ランキング」: Showed the ranking between you and your friends on how far you have gotten during a battle.
  • Quest 「クエスト」: A place to send off your inactive captains and support units, the quest area sent your captain and support units off on a quest for a certain amount of time, once returned, they would gain levels.
  • Captain Selection/Upgrade 「キャプテン選択」: A place to select the captain you wanted to use whenever you battled.

Support and Enemies

{{#tag:tabber| Regular= Most of the names used are conjectural.

UFO Doge
Red UFO Doge
UFO Doge Dark
UFO Shibalien
UFO Zoge
Metal UFO Doge
UFO Jackie Peng
Red UFO Peng
Black UFO Peng
UFO Star Peng
UFO Zackie Peng
Metal UFO Peng
Winter UFO Pigge
Green UFO Pigge
Dark UFO Pigge
Snache Bomb - If defeated, Snache Bomb would explode the current row of spaceships it was in.
Li'l Bun Bun - Li'l Bun Bun would appear every now and then to create a barricade from attacking the enemy ships. If defeated, he would drop a plethora of rewards.
Shy Boy - Shy Boys would appear from the top of the screen and descend to the bottom with a warning. They were indestructible and could not be defeated.
Green Chest - If defeated, a plethora of gems would appear from it.
Water Spirit - A minion spawned by the many Nyandam variants. It would occasionally shoot several blue projectiles at once.
Air Spirit - A minion spawned by the many Nyandam variants. It would constantly morph into a tornado, releasing a small green projectile.
Fire Spirit - A minion spawned from the many Nyandam variants. It would periodically shoot five orange projectiles at the player in quick succession.

Most of these enemies could also appear as sparking, which would drop either an item or a type of gem. |-| Bosses= [[Principal Bun Bun (ぶんぶん校長) - A variant of Teacher Bun Bun with plasma-powered wrist gauntlets
Forest Bear (森のクマさん Mori no Kuma-san) - A variant of Teacher Bear that looked like a tree
Poison Sir Seal (毒ゴマさま Doku Goma-sama) - A green variant of Sir Seal
Dark Nyandam (ダークニャンダム Dāku Nyandamu) - A purple variant of Dark Emperor Nyandam |-| Raid Bosses= These are the Raid Bosses that are known to exist. Since each one was only available for a limited time, it is possible that the game had Raid Bosses that are completely undocumented.

For added variation, each Raid Boss could appear with random prefixes that would affect their size, health, attack speed, weaknesses, etc., such as Chibi, Deca, Hyper, Wrathful, or Fateful. Some of these prefixes gave their bearer a faint glow or tint, but they won't be counted as separate variants.

Principal Bun Bun - A variant of Teacher Bun Bun with plasma-powered wrist gauntlets
A Christmas variant of Teacher Bun Bun
General Bun Bun - A blue-eyed variant of Teacher Bun Bun wearing armor Lava Bun Bun - A fiery variant of Teacher Bun Bun
Umbral Bun Bun - A purple variant of Teacher Bun Bun with devil horns and a spiral on his belly
General Relic Bun-Bun - A variant of Relic Bun-Bun with slightly bigger "hair"
Umbral Relic Bun-Bun - A purple variant of Relic Bun-Bun with demon wings
A fiery variant of Relic Bun-Bun
Mr. Forest Bear - A variant of Teacher Bear that looked like a tree
A winter variant of Teacher Bear
A Christmas variant of Teacher Bear
General Bear - A blue-eyed variant of Teacher Bear wearing armor
Lava Bear - A fiery variant of Teacher Bear Umbral Bear - A purple-and-Black variant of Teacher Bear with devil horns
Relic Bear - A Relic variant of Teacher Bear
Umbral Relic Bear - A purple-and-white Relic variant of Teacher Bear with a green spiral on his forehead Scrumptious Bear - A dessert-themed variant of Teacher Bear
Poison Sir Seal - A green variant of Sir Seal
Frozen Seal - Presumably an icy variant of Sir Seal
A Christmas variant of Sir Seal
General Seal - A silver variant of Sir Seal with blue eyes and a helmet
A fiery variant of Sir Seal
Relic Seal - A Relic variant of Sir Seal with a warm color palette
General Relic Seal - A Relic Seal with a dark gray circlet on his head and more traditional Relic colors
Frozen Relic Seal - A Relic Seal with a body made out of ice
A fiery Relic variant of Sir Seal
A Valentine's variant of Sir Seal
Jolly Poison Seal - A St. Patrick's Day variant of Sir Seal A winter variant of Kory
Another winter variant of Kory, with ice forming on his ears, a light blue nightcap, mittens, and a slightly more elaborate weapon
General Kory - A blue-eyed variant of Kory wearing armor
Lava Kory - A fiery variant of Kory
A Relic variant of Kory
A fiery Relic variant of Kory
A purple variant of Kory with devil horns
Dark Relic Kory - A purple-and-white Relic variant of Kory
Dark Nyandam - A purple variant of Dark Emperor Nyandam
Ghostly Nyandam - A transparent Dark Nyandam sitting atop a pale, ghastly throne
Frozen Nyandam - A wintry variant of Nyandam
Ghostly Frozen Nyandam - Frozen Nyandam, but he's slightly transparent and his body is engulfed in light
General Nyandam - A white variant of Nyandam with blue eyes and silver armor
Lava Nyandam - A fiery variant of Nyandam
Ghostly Lava Nyandam - A fiery counterpart of Ghostly Frozen Nyandam
Umbral Nyandam - An even more sinister-looking variant of Dark Nyandam, with a gray throne and crimson horns
Relic Nyandam - The basic Relic variant of Nyandam
A Relic variant of Frozen Nyandam
A fiery Relic variant of Nyandam
A purple-and-white Relic variant of Nyandam
A Valentine's variant of Nyandam |-| Cameos= These enemies appeared as statues or carvings in some of the backgrounds.

Sir Seal
One Horn
Squire Rel
Those Guys
The Face
Chickful A
Mr. Angel
Pigeon de Sable


Currency and Items

  • Nyanko Defence Force had an in-game currency system to unlock new support units, upgrade your captain's ship and buy new ships. There were also items to allow you to boost further in your battle, collect medals easier or make your ship stronger.

A medal would give 1 medal.
A purple gem would give 10 medals.
A red gem would give 20 medals
A blue gem would give 40 medals.
A blue trophy would give 1 trophy.
A bronze trophy would give 10 trophies.

A rainbow trophy would give 20 trophies.

Fuel Tank: Would boost the captains ship for a certain period before stopping back to normal speed.
Magnet: Attracted nearby currency or items towards the ship to allow for easy collection.
Catamin A: Shot double the projectiles, allowing the ship to clear out enemies more efficiently.
Taiyaki: Would power up your ship by one, allowing higher damage output.
Hourglass: When selected, the enemies and your bullets would slow down, allowing you to reposition yourself at normal speed.

Lollipop: When selected, a beam would replace the bullets shot for a short period of time.


The Battle Cats Wiki has a gallery for Nyanko Defence Force.
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External Links

Main BCEN (OldCurrent) • BCJP (OldCurrent) • BCTW • BCKR • 3DS (Name Comparisons) • Minna de Nyanko DaisensouJP only, removedSwitchRegional Differences
Spin-offs Kumanchu RoyaleJP only, removed, old generation phonesBattle Cats RangersremovedNyanko RunawayJP only, removedNyanko Defence ForceJP only, removedNyanko New JapanJP onlyGo! Go! Pogo CatThe Burgle CatsBattle Cats Quest
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