1-18 SIRIUS
BOSS
PROJECT A
1-18 Sirius is the 18th stage of Cosmos Ch.1 — Beyond the Exosphere. Previous stage: 1-17 Altair. Next stage: 1-19 Canopus.
STRATEGY
Project A debuts as boss in the Anti-Zombie cluster. His 451-range Warp punishes slow ranged units; rushers (Awakened Bahamut) and Warp-Immune backliners (Bora-line) take him down cleanly.
ENEMY ROSTER · 5
CATS TO CONSIDER 
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. 
BAKERY CAT A Curses Alien enemies. 
LITTLE LEAGUER CAT S Resistant vs Alien and Long Distance — a budget anti-Alien backliner. 
GUNDUROS S Massive Damage + KB + Slow vs Alien. Also fits “Out-range Project A.”
Counter Alien
Project A is 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. BAKERY CAT A Curses Alien enemies. LITTLE LEAGUER CAT S Resistant vs Alien and Long Distance — a budget anti-Alien backliner. GUNDUROS S Massive Damage + KB + Slow vs Alien. Also fits “Out-range Project A.” Out-range Project A
Project A reaches 451 range. Units that out-range it can chip safely without taking hits.
ENEMY BASE 
BASE HEALTH
175,000
The castle you destroy to clear the stage.
STAGE DATA
SAGACats of the Cosmos
CHAPTERCosmos Ch.1 — Beyond the Exosphere
ENEMIES5
TREASUREBig Dog
RESTRICTIONMax 20