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 later removed with the Invite Friends to get Moneko feature in the Version 4.3 Update.

How to Obtain

There were many ways to get Serial Codes:

• Winning contests held by PONOS on their Facebook and Twitter pages.
• Codes that were bundled in the game's merchandise.

Most of the serial codes could only be used once excluding Easter Egg codes.

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 are codes that when used, would unlock a hidden Cat Unit.

Merchandise Codes

These were one-time use codes that were included in the game's merchandise. 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 many have been granted new methods to be obtained.

Name of Character	Pre 4.3 Method	Current Method	The Battle Cats Unite! Method
Capsule Cat	Input codes from Battle Cats strap, from 1st Gashapon machine.	Reach the milestone during the MattShea Collaboration Event.	Clearing any stage by sending only one Cat Unit on the field.
Masked Cat	Input codes from Battle Cats lottery double chance campaign.	N/A	Opening the game at midnight.
Maiko Cat	Input codes from Nyanko Ecology Report	N/A	Clearing Bermuda 10 times with Cat in the lineup.
Evangelist Cat	Exclusive to Korean Version. Obtain by input the serial code from the game's merchandise.	N/A	Clearing The Big Bang.
Toy Machine Cat	Input codes from Battle Cats strap, from 2nd Gashapon machine.	N/A	Rolling the Cat Capsule 30 times then clearing any stage in-game.
Blue Shinobi	Input codes from Battle Cats strap, from 3rd Gashapon machine.	N/A	Clearing Greece and Russia 10 times.
Singer Cat	Input the serial code: ラス－ボス	Clear the stage Final Boss Advent!?	N/A
Cat Bros	Input codes from Battle Cats strap, from 4th Gashapon machine.	Clear the stage For the Fans.	Clearing 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 Battle Cats strap, from 5th Gashapon machine.	Clear the stage Watch & Earn.	Viewing the Cat Storage for 5 minutes straight then winning any stage in-game.
God	Input codes from Battle Cats Ecology Report TokuSakari	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!.
Picohan Cat	N/A	N/A	Purchase The Battle Cats Unite! Switch Case combo.
Beetle Cat	N/A	N/A	Purchase the 15th, November 2018 issue of CoroCoro Comic.
Stag Cat	N/A	N/A	Purchase the 9th, February 2019 issue of CoroCoro Comic.
Coro Dragon	N/A	N/A	Participate in the Next Generation World Fair Winter 2019.
Leaking Cat	N/A	N/A	Purchase the 15th, July 2020 issue of CoroCoro Comic.

Trivia

• Many of the Serial Code Cats are Easter eggs in The Battle Cats Unite!.
• Even though Evangelist Cat is only available in the Korean Version, his entry in the GameGift page categorized him as a Serial Code Cat.