Battle Cats Wiki

Rotten Apex is the thirteenth stage in Island of Hidden Treasure.


  • 3 Zoges spawn after 7 seconds210f, delay 10~15 seconds300f~450f.
  • 3 Zomboes spawn after 15 seconds450f, delay 26.67 seconds800f.
  • When the base reaches 99% HP:
    • 1 Dread Bore spawns as the boss.
    • 3 Zrocos spawn, delay 10~15 seconds300f~450f.
    • 3 Zigges spawn, delay 26.67~33.33 seconds800f~1,000f.
    • 2 Zir Zeals spawn, delay 60 seconds1,800f.
    • 7 Coffin Zoges spawn, delay 10~16.67 seconds300f~500f.


Strategy 1[]

Lineup: Manic Mohawk Cat 25+, Manic Eraser Cat 30, Weedwacker Cat 30+, Ectoweight Cat 30+, Skelecat 30, Housewife Cat 30

Cannon: Holy Blast


  • No other cats are strictly necessary, but any other anti-Zombie unit or Cat Combo can help for the remaining slots.
  • Before hitting the base, you can stack your CC units.
  • Save up Holy Blast for the Dread Bore.

Begin by sending out a single Manic Eraser to make the initial Zombies burrow. Level up your Worker Cat a few times while the first Zombies un-burrow and come to your base. Spam only Erasers as a meatshield once you engage the Zombies, and make sure to bring in Housewife Cats and Weedwacker Cats on cooldown. Once you approach the enemy base, start spamming both meatshields and don't stop. If you stack enough Weedwacker Cats, you'll freeze the opposing frontlines and prevent them from breaking through while other Zombies cut off your reinforcements. If you can do Into the Future Zombie Outbreaks, don't be intimidated by the Merciless tag, as you'll be fine here.

Strategy 2[]

Start off by sending a single Crazed Wall to get the initial Zombies to borrow. When they are more than halfway through the battlefield, start spamming Thaumaturges and protecting them with Crazed Walls and Erasers, get your Worker Cat to level 4, then save up for Bahamut and Valkyrie. When you have enough, send out Valkyrie, for she will take care of the Zombies on the field and rush to the enemy base. Let all the new Zombies burrow and, while they're underground, spawn Awakened Bahamut. Then spam every Cat, hoping you get knockbacks. If you stall the enemies long enough, Bahamut will destroy their base. He has to hit it around 10 or 11 times though, so do your best job at stalling.