Cat Busters Collaboration Event

Cat Busters is an RPG action game created by the same developer of Merc Storia, had a collaboration event with Battle Cats.

Event
The genius scientist Dr.Neko challenge.
 * Collaboration Stages

Characters from Cat Busters appear as enemies.

From the Stories of Legend menu screen, when the player tap the "Start Fighting!" button, a collaboration stage "Assault! Cat Busters!" (突撃！キャットバスターズ, Totsugeki! Kyattobasutāzu) will appear.

Once the player clears the stages, they will receive rewards such as XP, Silver Tickets and Rare Tickets.

When complete all the levels, the player will get 30 Cat Food as first clear bonus.
 * *If Cat Busters collaboration stages does not appear, the player needs to update their Battle Cats app to the latest version.

Complete the collaboration stage in Cat Busters to receive rewards that used in Battle Cats:
 * Benefits from Cat Busters
 * ~285 points: Cat Food +30
 * ~2850 points: Rare Ticket +1
 * ~10000 points: NekoHakase (Special Cat)
 * *The player can unlock NekoHakase in the Special Cat screen from the Upgrade menu.

Japanese Version

 * December 1st, 2016 (11:00) to December 12th, 2016 (10:59)
 * Event period on Cat Busters' side: December 1st, 2016 (11:00) to December 14th, 2016 (10:59)

Reference

 * https://ponos.s3.amazonaws.com/information/appli/battlecats/news/catbusters.html