2-43 BROTON
2-43 Broton is the 43rd stage of Cosmos Ch.2 — The Passion of Catgod. Previous stage: 2-42 Gorigori. Next stage: 2-44 Crimson Star.
UltraBaaBaa carries a Barrier (up to 266,000 HP) — your hits are absorbed until it's broken.
UltraBaaBaa's 266,000 Barrier needs a guaranteed 100% Barrier Breaker — chance-based units stall and waste your damage window.
FENCER CAT A Guaranteed 100% Barrier Breaker at long range — the reliable accessible breaker. 
KOMORI S 100% chance to break Barriers. Also fits “Counter Alien.” 
LUMINA S 100% Barrier Breaker opens Star Alien Barriers for the team. Also fits “Counter Alien.” 
BORA S 100% Barrier Breaker reliably cracks Star Alien Barriers. Also fits “Counter Alien.” 
GRAVI S 100% chance to break Barriers. Also fits “Counter Alien.” 
MIZLI S 100% chance to break Alien Barriers. Also fits “Counter Alien.” 
Shibalien, Kroxo and UltraBaaBaa are Alien. Anti-Alien units take less damage and deal more.
GROSS CAT A Its True Form is Strong Against Alien, giving budget anti-Alien value. 
LI'L GROSS CAT B True Form has a 30% Knockback vs Alien. Also fits “Break the Barrier.” 
BAKERY CAT A Curses Alien enemies. Also fits “Counter Angel.” 
MITER SAW CAT A Resistant to Alien and deals Massive Damage to Alien. Also fits “Break the Barrier.” KOMORI S Curse, Resistant and Barrier break vs Alien. Also fits “Break the Barrier.” Gabriel is Angel. Anti-Angel units take less damage and deal more.
LI'L AXE CAT C True Form (Li'l Dark Cat) is Strong against Angel. BAKERY CAT A Curses Angel enemies. Also fits “Counter Alien.” 
CAT TOASTER A Slows Angel enemies from long range. Also fits “Break the Barrier.” 
KALISA S Deals Massive Damage to Angel enemies. Also fits “Clear the crowd.” 
PHANTOM CAT A Massive Damage to Angel from Long Distance. Doge Dark is Dark. Anti-Dark units take less damage and deal more.
CATS IN A BOX B True Form has a 30% chance to Weaken Dark enemies. 
JETPACK CAT A Resistant to Dark — durable against Dark attackers. Also fits “Counter Alien.” 
CATWAY A Strong against Dark. Also fits “Counter Angel.” KOMORI S Curse, Resistant and Barrier break vs Dark. Also fits “Break the Barrier.” 
DOM CAT B True Form (Dark Lazer) is also Strong against Dark. 9 enemy types stack up here. Area attackers hit the whole push at once instead of one unit at a time.
VALKYRIE CAT A Hits the whole group while it freezes them. 
WHEEL CAT A Hits every Alien in a wide area at once, melting grouped Star Aliens. Also fits “Counter Alien.” 
SURFER CAT A Area damage hits grouped enemies. Also fits “Counter Alien.” 
CATMAN S Long-range Area damage clears groups. Also fits “Counter Alien.” 
ACTRESS CAT B Hits multiple enemies at once for budget crowd damage. UltraBaaBaa's 266,000-HP Barrier is the highest in the game. Anti-Alien Barrier Breakers (Bazibon line, Loincloth Cat) cut through.
UltraBaaBaa boss. Has the highest Barrier HP in the game (266,000). Barrier Breaker is non-negotiable. Community standard: talented Crazed Bahamut + King Dragon Cat for guaranteed Barrier Break, then Anti-Alien backline for the cleanup. The MAX_10 restriction + Starred Alien Ch.2 magnifications mean stalling fails — burst window or loss. Mystery Mask treasure for Ch.2 lives here — collect it before attempting 2-48. Common failure: bringing probabilistic Barrier Breakers (50% chance cats). Against a 266k barrier you need guaranteed; chance-based units will eat your DPS uptime.
The castle you destroy to clear the stage.