1-48 THE BIG BANG
1-48 The Big Bang is the 48th stage of Cosmos Ch.1 — Beyond the Exosphere. Previous stage: 1-47 Black Hole.
CotC Ch.1 final boss. The Cat God (Floating, 1.4M HP) fires three lightning strikes for ~54k combined damage at 1,000 range. ALL Mystery Mask treasures (43/45/47) required to keep him at 100% — otherwise 1,100%. Endless waves of Starred Alien peons accompany him. Butterfly Cat (Anti-Floating) + Dancing Flasher (Floating + Crit) + Awakened Bahamut chaining is the canonical clear.
Floating boss of The Big Bang in Cats of the Cosmos Chapter 1. He stands at 1,000 range and often fires three lightning strikes totalling over 50,000 damage. Maxing the Mystery Mask Treasure is close to necessary.
6k 
40k 
12k General GreGory, Le'Solar and Spacefish Jones carry Barriers (up to 40,000 HP) — your hits are absorbed until it's broken.
Le'Solar's 40,000 Barrier needs a guaranteed 100% Barrier Breaker — chance-based units stall and waste your damage window.
SUPERCAR CAT B Guaranteed 100% Barrier Breaker. Also fits “Burst the boss down.” 
FENCER CAT A Guaranteed 100% Barrier Breaker at long range — the reliable accessible breaker. 
TEKACHI A 100% chance to break Barriers. Also fits “Counter Floating.” 
LUMINA S 100% Barrier Breaker opens Star Alien Barriers for the team. 
BORA S 100% Barrier Breaker reliably cracks Star Alien Barriers. 
GRAVI S 100% chance to break Barriers. 
The Cat God is Floating. Anti-Floating units take less damage and deal more.
SABER THE CAT C Saber Alter Cat: Strong against Floating enemies (Deals 1.5x damage, only takes 1/2 damage) 
ARCHER CAT A Deals Massive Damage to Floating enemies. 
BODHISATTVA CAT A Slows and (True) Weakens Floating enemies. Also fits “Clear the crowd.” 
CATMAN S Massive Damage vs Floating (Normal). Also fits “Clear the crowd.” 
HIGH LORD BABEL S Equally tough against Floating enemies, with Colossus Slayer. The Cat God reaches 1000 range. Units that out-range it can chip safely without taking hits.
The Cat God has a deep HP pool (1,399,999+ even before stage magnification). Heavy single-target burst shortens the fight.
SUPERCAR CAT B 51,000 damage per hit at Lv.30. Also fits “Break the Barrier.” 
IZ THE DANCER S Big Multi-Hit Massive-Damage bursts. Also fits “Clear the crowd.” 
GAIA THE CREATOR S Long-Distance multi-hit with Insane Damage — a generalist wall-cracker. 
BAHAMUT CAT S Huge multi-hit burst — a story-unlock powerhouse that deletes tanky enemies. 
KALISA S Big Massive-Damage Area hits. Also fits “Clear the crowd.” 7 enemy types stack up here. Area attackers hit the whole push at once instead of one unit at a time.
HITMAN CAT A Area attacks hit everything in range. 
SALON CAT S Hits whole crowds, and is Weaken-immune so it keeps firing through Weaken stages. 
DELINQUENT CAT A Area Multi-Hit clears grouped enemies. Also fits “Counter Floating.” 
LASVOSS S Long-range Area damage clears groups. Also fits “Burst the boss down.” 
JAGANDO JR. A Area attacks hit everything in range. The defining Awakened Bahamut showcase stage. The community calls this one 'easy if you're prepared, brutal if you're not' — the difficulty isn't Cat God himself (1.4M HP Floating boss) but the endless Project A peon wave behind him. Universal advice: have all three Mystery Mask treasures (Broton, N77, Black Hole superior) before attempting, or Cat God's stats balloon to 1,100% and the stage becomes mathematically impossible at sane levels. Standard loadout: meatshield stack (Mohawk + Eraser + Manic Mohawk) → Fishman Cat to rush Cat God between peon waves → Awakened Bahamut for burst damage when there's a clear window. Backline: Bahamut Cat (Special) for safe chip + any anti-Floating Uber (Twinstars / Bombercat / Ganglion) to outrange the peon wall. Common failure: forgetting that Spacefish Jones spawns at the 10-minute mark and stops the attrition game. If your clear is dragging past 8 minutes, you've already lost.
The castle you destroy to clear the stage.