The Battle Cats Capture Items Book (攻略アイテムBOOK) is a Japanese document that was released by PONOS in March 12, 2015.
Explain the game in an easy-to-understand guide
Explain some basic tactics and enemy units
Special download content: "大入! にゃんこまっしぐらセット" include: 5 Silver Ticket, 1 Rare Ticket and 30 Cat Food, this content can get up to 10 times per account(?), this book benefits will be obtained after clearing Chapter 1 - Stage 7 (Fukuoka)
The serial code can be downloaded only once and the expiration date of the serial code is up to 23:59 PM, March 31, 2016.