Atrocious Deco

Atrocious Deco is the sixth and final stage of Grotesque Gallery.

Battleground
This stage is much like Kugel Schreiber, with multiple bosses spawning as the base depletes in health. Each boss is accompanied with two Squire Rels to produce two boss shockwaves.
 * Berserkory spawns at the beginning.
 * Razorback spawns when the base is at 90% health (1,350,000 health).
 * Bun Bun Symbiote spawns when the base is at 80% health (1,200,000 health).
 * Boraphim and Angelic Sleipnir spawn when the base is at 70% health (1,050,000 health).

Uberless lineup
Demonstrated video: [1] 
 * Crazed Cat, Crazed Tank Cat, Eraser Cat, Ramen Cat, Thatamurge Cat, Bombercat, Crazed Fish Cat, Macho Legs Cat, Dragon Cat and Awakened Bahamut.

Ubercarried lineup
Demonstrated video: [2] 
 * Ramen Cat, iCat, Bombercat, Seafarer Cat, Kasa Jizo, Balrog Cat, Awakened Bahamut, Mitama the Oracle, Mighty Lord Gao and Dark Catman.

Reference

 * http://battlecats-db.com/stage/s00041-06.html