Serial Codes

REMOVED CONTENT The subject of this article is something that is no longer available.

Serial Codes were special codes that could be input in the game for various rewards. This feature was removed alongside the Invite Friends to get Moneko feature in the Version 4.3 Update.

Classification and Function

Gift Codes

These were one-time use codes that were sent to the winners of PONOS' contests. These codes would give the player items such as XP, Cat Food and Tickets.

Secret Codes

These were codes that when used, would unlock hidden Cat Units.

Merchandise Codes

These were one-time use codes that were included alongside Battle Cats merchandise (or in the case of Mob Cat and the 5 Kishidan Collaboration Units, movie tickets and CDs). They would give items or Cat Units.

How to use

Main menu for Version 2.1.1	From the title screen, tap the "Invite friends to get Moneko" button at the bottom right of the screen.
Invite page	Tap the green button "シリアルコード" at the bottom right of the screen.
Serial Code input	Input the code on these two boxes.
Present redemption	If you do it right, the rewards will appear after that.

List of Serial Code Cats

Many of the cats listed below are unobtainable, however, but others have been granted new methods to be obtained, some only in Switch port.

Name of Character	Pre 4.3 Method	Current Method	The Battle Cats Unite! Method
Capsule Cat	Input codes from Nyanko Great War! Strap gashapon machine.	Reach the milestone during the MattShea Collaboration Event.	Clear any stage by sending only one Cat Unit on the field.
Masked Cat	Input codes from Battle Cats lottery double chance campaign.	N/A	Open the game at midnight.
Maiko Cat	Input codes from Nyanko Ecology Report.	N/A	Clear Bermuda 10 times with Cat in the lineup.
Evangelist Cat	Input codes from PONOS employees' business cards.	N/A	Clear The Big Bang.
Toy Machine Cat	Input codes from Nyanko Great War! Strap 2 gashapon machine.	N/A	Play the Cat Capsule 30 times, then clearing any stage in-game.
Blue Shinobi	Input codes from Nyanko Great War! Strap Set.	N/A	Clear Greece and Russia 10 times.
Cabaret Cat	Input the serial code: ラス－ボス	Clear the stage Let's GOOO! <(@0@)>	N/A
Cat Bros	Input codes from Nyanko Great War! Strap 3 gashapon machine.	Clear the stage For the Fans.	Clear any stage with a lineup consisting of; Macho Cat, Wall Cat and Brave Cat.
Hikakin	Input the serial code: ヒカ－キン	Clear Hikakin Advent.	N/A
Squish Ball Cat	Input codes from Nyanko Great War! Funyuu Funyuu Mascot!, from 5th Gashapon machine.	Clear the stage Watch & Earn.	View the Cat Storage for 5 minutes straight then winning any stage in-game.
God	Input codes from Nyanko Ecology Report Special Edition	N/A	N/A
Tutorial Cat	Input the serial code: とくい－ふくだ	N/A	N/A
Ayanokōji Shō	Input codes from Kishidan's CD "幸せにしかしねーから"	N/A	N/A
Saotome Hikaru	Input codes from Kishidan's CD "幸せにしかしねーから"	N/A	N/A
Saionji Hitomi	Input codes from Kishidan's CD "幸せにしかしねーから"	N/A	N/A
Hoshi Guranmanie	Input codes from Kishidan's CD "幸せにしかしねーから"	N/A	N/A
Shiratori Shōchikubai	Input codes from Kishidan's CD "幸せにしかしねーから"	N/A	N/A
Mob Cat	Input code included in Yakuza Apocalypse movie ticket.	N/A	N/A
Yamaoka Minori	Input the serial code: みのりん	N/A	N/A
Nakamura Kanae	Input the serial code: かにー	N/A	N/A
Cat Bros	N/A	N/A	Purchase The Battle Cats Unite!.
Mallet Cat	N/A	N/A	Purchase The Battle Cats Unite! Switch Case combo.
Kabuto Cat	N/A	N/A	Purchase the 15th, November 2018 issue of CoroCoro Comic.
Kuwagata Cat	N/A	N/A	Purchase the 9th, February 2019 issue of CoroCoro Comic.
Corodragon	N/A	N/A	Participate in the Next Generation World Fair Winter 2019.
Undies Cat Jr.	N/A	N/A	Purchase the 15th, July 2020 issue of CoroCoro Comic.

Trivia

• Evangelist Cat is the only non-Special Cat to be obtained via serial code.