Battle Cats Wiki

Sine-Cosine Mine is the fourth stage in Demon of Deciliter Bay. Bears Be Back debut here.


  • 3 Big Sals spawn after 0.07 seconds2f, delay 43.33 seconds1,300f.
  • Infinite Those Guys spawn after 1.33 seconds40f, delay 6.67~10 seconds200f~300f.
  • Infinite Cerberus Kids spawn after 2.67 seconds80f, delay 6.67~10 seconds200f~300f.
  • Infinite Thrillerz spawn after 4 seconds120f, delay 10~13.33 seconds300f~400f.
  • Infinite Trolly Bloggers spawn after 40 seconds1,200f, delay 3.33~6.67 seconds100f~200f.
  • 1 Bears Be Back spawns as the boss after 40 seconds1,200f.


The Bears Be Back here appear at 4,000% magnification making them very powerful having 2,000,000 HP and a total of about 14,000 DPS. On top of that, they also have a 33% chance to Weaken, Freeze, and Slow and a 21% chance to Knockback and Warp making them very threatening. Despite all of this, they are still very counterable with their many traits. Besides Variety Bears, the only other major threat is Big Sal. As per most Big Sal stages, Cadaver BearCat, Ectoweight Cat, and Holy Blast are recommended. Be careful though, as there are three of them and if any of them reach your base, it's over.

Strategy 1 (4 Crown Restrictions)[]

Lineup: Biohazard, Bony Bone, Riceball Cat (Max Defence Buff) 50, Shigong Cat 50+15, Jellycat 50, Cadaver BearCat 50, Cat Chief 50, Esoteric Uril 50, Awakened Urs 50

Cannon: Holy Blast


  • Esoteric Uril can be replaced with Awakened Ururun, Esoteric Uril is simply the best option as he can clear all the other peons.
  • Holy Blast is at level 30, dealing 50% to buried zombies (15% to unburied).

Send out Jellycat to kill off the early peons and get some money. Send out a couple of Shigong Cats, and then Esoteric Uril to make sure he isn't in the front, then continue to spam your meatshields. Once Big Sal starts coming, start spamming Cadaver BearCat. Once Big Sal is buried, try to time Cat Chief so that when you fire the Holyblast, Cat Chief will hit them.

This strategy should be able to completely stop all the Big Sals, leaving the Variety Bears as the only threat, except that you only need to meatshield, and occasionally Holyblast them, before they collapse and die. If Esoteric Uril dies, or you have enough money, send out Awakened Urs as well to take out Variety Bears faster.